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Wilkins Reduced Pressure Detector Assembly

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Model 375DA (2-1/2" - 12")

Model 375DA (2-1/2" - 12")

Designed for installation on potable water lines in fire protection systems to protect against both backsiphonage and backpressure of contaminated water into the potable water supply. Incorporates metered by-pass to detect leaks and unauthorized water use.

SKU Description 10" Price Qty
10-375DASCFMNRS 10" 10-375DASCFMNRS Reduced Principle Detector Assy, Flanged Body, Flanged NRS x Flanged NRS, SCFM Meter $14,483.08
10-375DA 10" 10-375DA Reduced Principle Detector Assy, Flanged Body, Flanged OSY x Flanged OSY $14,354.02
10-375DACFM 10" 10-375DACFM Reduced Principle Detector Assy, Flanged Body, Flanged OSY x Flanged OSY, CFM Meter $14,354.15
10-375DALM 10" 10-375DALM Reduced Principle Detector Assy, Flanged Body, Flanged OSY x Flanged OSY, Less Meter $14,203.24
10-375DASCFM 10" 10-375DASCFM Reduced Principle Detector Assy, Flanged Body, Flanged OSY x Flanged OSY, SCFM Meter $14,450.08
10-375DACFMFG 10" 10-375DACFMFG Reduced Principle Detector Assy, Flanged Body, Flanged OSY x Grooved OSY, CFM Meter $14,354.15
10-375DAFG 10" 10-375DAFG Reduced Principle Detector Assy, Flanged Body, Flanged OSY x Grooved OSY, CFM Meter $14,354.21
10-375DASCFMFG 10" 10-375DASCFMFG Reduced Principle Detector Assy, Flanged Body, Flanged OSY x Grooved OSY, SCFM Meter $14,450.08
10-375DAL 10" 10-375DAL Reduced Principle Detector Assy, Flanged Body, Flanged x Flanged, Less Gate Valves $10,828.74
10-375DALSCFM 10" 10-375DALSCFM Reduced Principle Detector Assy, Flanged Body, Flanged x Flanged, Less Gate Valves, SCFM Meter $10,924.86
10-375DAG 10" 10-375DAG Reduced Principle Detector Assy, Flanged Body, Grooved OSY x Grooved OSY $14,354.15
10-375DACFMG 10" 10-375DACFMG Reduced Principle Detector Assy, Flanged Body, Grooved OSY x Grooved OSY, CFM Meter $14,354.15
10-375DASCFMG 10" 10-375DASCFMG Reduced Principle Detector Assy, Flanged Body, Grooved OSY x Grooved OSY, SCFM Meter $14,450.08
SKU Repair Kits 10" Price Qty
RK8-375DAC 8" RK8-375DAC Repair Kit - 375DA/475DA Rubber Only (checks & relief), incl by-pass parts $345.40
SKU Description 8" Price Qty
8-375DA 8" 8-375DA Reduced Principle Detector Assy, Flanged Body, Flanged OSY x Flanged OSY $11,211.94
8-375DACFM 8" 8-375DACFM Reduced Principle Detector Assy, Flanged Body, Flanged OSY x Flanged OSY, CFM Meter $11,212.01
8-375DALM 8" 8-375DALM Reduced Principle Detector Assy, Flanged Body, Flanged OSY x Flanged OSY, Less Meter $11,061.23
8-375DALMNYC 8" 8-375DALMNYC Reduced Principle Detector Assy, Flanged Body, Flanged OSY x Flanged OSY, Less Meter, NYC Option $11,018.95
8-375DARH 8" 8-375DARH Reduced Principle Detector Assy, Flanged Body, Flanged OSY x Flanged OSY, Right Hand Operation $12,013.06
8-375DASCFM 8" 8-375DASCFM Reduced Principle Detector Assy, Flanged Body, Flanged OSY x Flanged OSY, SCFM Meter $11,308.07
8-375DASB 8" 8-375DASB Reduced Principle Detector Assy, Flanged Body, Flanged OSY x Flanged OSY, SS Bolts $11,953.70
8-375DACFMFG 8" 8-375DACFMFG Reduced Principle Detector Assy, Flanged Body, Flanged OSY x Grooved OSY, CFM Meter $11,212.01
8-375DAFG 8" 8-375DAFG Reduced Principle Detector Assy, Flanged Body, Flanged OSY x Grooved OSY, CFM Meter $11,212.01
8-375DASCFMFG 8" 8-375DASCFMFG Reduced Principle Detector Assy, Flanged Body, Flanged OSY x Grooved OSY, SCFM Meter $11,308.07
8-375DAL 8" 8-375DAL Reduced Principle Detector Assy, Flanged Body, Flanged x Flanged, Less Gate Valves $8,125.64
8-375DALMMS 8" 8-375DALMMS Reduced Principle Detector Assy, Flanged Body, Fx F, OSY, Less Meter, RV Monitor Switch $12,023.50
8-375DAG 8" 8-375DAG Reduced Principle Detector Assy, Flanged Body, Grooved OSY x Grooved OSY $11,212.01
8-375DACFMG 8" 8-375DACFMG Reduced Principle Detector Assy, Flanged Body, Grooved OSY x Grooved OSY, CFM Meter $11,212.01
8-375DASCFMG 8" 8-375DASCFMG Reduced Principle Detector Assy, Flanged Body, Grooved OSY x Grooved OSY, SCFM Meter $11,308.07
SKU Repair Kits 8" Price Qty
RK8-375DAC 8" RK8-375DAC Repair Kit - 375DA/475DA Rubber Only (checks & relief), incl by-pass parts $345.40
SKU Description 6" Price Qty
6-375DALLMNYC 6" 375DA L/GV L/MTR NEW YORK $4,908.12
6-375DALMNYC 6" 375DA L/MTR NEW YORK $6,503.28
6-375DA 6" 6-375DA Reduced Principle Detector Assy, Flanged Body, Flanged OSY x Flanged OSY $6,598.16
6-375DACFM 6" 6-375DACFM Reduced Principle Detector Assy, Flanged Body, Flanged OSY x Flanged OSY, CFM Meter $6,598.16
6-375DALM 6" 6-375DALM Reduced Principle Detector Assy, Flanged Body, Flanged OSY x Flanged OSY, Less Meter $6,447.40
6-375DAMS 6" 6-375DAMS Reduced Principle Detector Assy, Flanged Body, Flanged OSY x Flanged OSY, RV Monitor Switch $7,146.30
6-375DASCFM 6" 6-375DASCFM Reduced Principle Detector Assy, Flanged Body, Flanged OSY x Flanged OSY, SCFM Meter $6,694.24
6-375DASB 6" 6-375DASB Reduced Principle Detector Assy, Flanged Body, Flanged OSY x Flanged OSY, SS Bolts $6,692.60
6-375DAOSYPI 6" 6-375DAOSYPI Reduced Principle Detector Assy, Flanged Body, Flanged OSY x Flanged PI $6,598.16
6-375DACFMFG 6" 6-375DACFMFG Reduced Principle Detector Assy, Flanged Body, Flanged OSY x Grooved OSY, CFM Meter $6,598.16
6-375DAFG 6" 6-375DAFG Reduced Principle Detector Assy, Flanged Body, Flanged OSY x Grooved OSY, CFM Meter $6,598.16
6-375DALMFG 6" 6-375DALMFG Reduced Principle Detector Assy, Flanged Body, Flanged OSY x Grooved OSY, Less Meter $6,447.40
6-375DASCFMFG 6" 6-375DASCFMFG Reduced Principle Detector Assy, Flanged Body, Flanged OSY x Grooved OSY, SCFM Meter $6,694.24
6-375DALLM 6" 6-375DALLM Reduced Principle Detector Assy, Flanged Body, Flanged x Flanged , Less Gate Valves, Less Meter $4,908.18
6-375DAL 6" 6-375DAL Reduced Principle Detector Assy, Flanged Body, Flanged x Flanged, Less Gate Valves $5,069.08
6-375DALCFM 6" 6-375DALCFM Reduced Principle Detector Assy, Flanged Body, Flanged x Flanged, Less Gate Valves, CFM Meter $5,069.15
6-375DALMMS 6" 6-375DALMMS Reduced Principle Detector Assy, Flanged Body, Fx F, OSY, Less Meter, RV Monitor Switch $7,010.87
6-375DAGF 6" 6-375DAGF Reduced Principle Detector Assy, Flanged Body, Grooved OSY x Flanged OSY $6,598.16
6-375DAG 6" 6-375DAG Reduced Principle Detector Assy, Flanged Body, Grooved OSY x Grooved OSY $6,598.16
6-375DACFMG 6" 6-375DACFMG Reduced Principle Detector Assy, Flanged Body, Grooved OSY x Grooved OSY, CFM Meter $6,598.16
6-375DALMG 6" 6-375DALMG Reduced Principle Detector Assy, Flanged Body, Grooved OSY x Grooved OSY, Less Meter $6,447.40
6-375DASCFMG 6" 6-375DASCFMG Reduced Principle Detector Assy, Flanged Body, Grooved OSY x Grooved OSY, SCFM Meter $6,694.24
SKU Repair Kits 6" Price Qty
RK6-375DAC 6" RK6-375DAC Repair Kit - 375DA/475DA Rubber Only (checks & relief), incl by-pass parts $296.52
SKU Description 4" Price Qty
4-375DA 4" 4-375DA Reduced Principle Detector Assy, Flanged Body, Flanged OSY x Flanged OSY $5,058.07
4-375DACFM 4" 4-375DACFM Reduced Principle Detector Assy, Flanged Body, Flanged OSY x Flanged OSY, CFM Meter $5,058.07
4-375DAFSC 4" 4-375DAFSC Reduced Principle Detector Assy, Flanged Body, Flanged OSY x Flanged OSY, Epoxy Coated Strainer $5,289.91
4-375DALM 4" 4-375DALM Reduced Principle Detector Assy, Flanged Body, Flanged OSY x Flanged OSY, Less Meter $4,897.26
4-375DALMNYC 4" 4-375DALMNYC Reduced Principle Detector Assy, Flanged Body, Flanged OSY x Flanged OSY, Less Meter, NYC Option $4,939.66
4-375DASCFM 4" 4-375DASCFM Reduced Principle Detector Assy, Flanged Body, Flanged OSY x Flanged OSY, SCFM Meter $5,160.55
4-375DASB 4" 4-375DASB Reduced Principle Detector Assy, Flanged Body, Flanged OSY x Flanged OSY, SS Bolts $5,058.14
4-375DACFMFG 4" 4-375DACFMFG Reduced Principle Detector Assy, Flanged Body, Flanged OSY x Grooved OSY, CFM Meter $5,058.07
4-375DAFG 4" 4-375DAFG Reduced Principle Detector Assy, Flanged Body, Flanged OSY x Grooved OSY, CFM Meter $5,058.07
4-375DALMFG 4" 4-375DALMFG Reduced Principle Detector Assy, Flanged Body, Flanged OSY x Grooved OSY, Less Meter $4,897.26
4-375DASCFMFG 4" 4-375DASCFMFG Reduced Principle Detector Assy, Flanged Body, Flanged OSY x Grooved OSY, SCFM Meter $5,160.55
4-375DALLM 4" 4-375DALLM Reduced Principle Detector Assy, Flanged Body, Flanged x Flanged , Less Gate Valves, Less Meter $3,392.59
4-375DAL 4" 4-375DAL Reduced Principle Detector Assy, Flanged Body, Flanged x Flanged, Less Gate Valves $3,553.43
4-375DALCFM 4" 4-375DALCFM Reduced Principle Detector Assy, Flanged Body, Flanged x Flanged, Less Gate Valves, CFM Meter $3,553.43
4-375DAGF 4" 4-375DAGF Reduced Principle Detector Assy, Flanged Body, Grooved OSY x Flanged OSY $5,058.07
4-375DAG 4" 4-375DAG Reduced Principle Detector Assy, Flanged Body, Grooved OSY x Grooved OSY $5,058.07
4-375DACFMG 4" 4-375DACFMG Reduced Principle Detector Assy, Flanged Body, Grooved OSY x Grooved OSY, CFM Meter $5,058.07
4-375DALMG 4" 4-375DALMG Reduced Principle Detector Assy, Flanged Body, Grooved OSY x Grooved OSY, Less Meter $4,897.26
4-375DASCFMG 4" 4-375DASCFMG Reduced Principle Detector Assy, Flanged Body, Grooved OSY x Grooved OSY, SCFM Meter $5,160.55
4-375DAOSYPIG 4" 4-375DAOSYPIG Reduced Principle Detector Assy, Flanged Body, Grooved OSY x Grooved PI $5,058.07
SKU Repair Kits 4" Price Qty
RK4-375DAC 4" RK4-375DAC Repair Kit - 375DA/475DA Rubber Only (checks & relief), incl by-pass parts $209.56
SKU Description 3" Price Qty
3-375DA 3" 3-375DA Reduced Principle Detector Assy, Flanged Body, Flanged OSY x Flanged OSY $4,093.33
3-375DACFM 3" 3-375DACFM Reduced Principle Detector Assy, Flanged Body, Flanged OSY x Flanged OSY, CFM Meter $4,093.39
3-375DAFSC 3" 3-375DAFSC Reduced Principle Detector Assy, Flanged Body, Flanged OSY x Flanged OSY, Epoxy Coated Strainer $4,310.77
3-375DALM 3" 3-375DALM Reduced Principle Detector Assy, Flanged Body, Flanged OSY x Flanged OSY, Less Meter $3,932.52
3-375DALMNYC 3" 3-375DALMNYC Reduced Principle Detector Assy, Flanged Body, Flanged OSY x Flanged OSY, Less Meter, NYC Config $3,793.14
3-375DALMNYC 3" 3-375DALMNYC Reduced Principle Detector Assy, Flanged Body, Flanged OSY x Flanged OSY, Less Meter, NYC Config $3,793.14
3-375DASCFM 3" 3-375DASCFM Reduced Principle Detector Assy, Flanged Body, Flanged OSY x Flanged OSY, SCFM Meter $4,195.80
3-375DACFMFG 3" 3-375DACFMFG Reduced Principle Detector Assy, Flanged Body, Flanged OSY x Grooved OSY, CFM Meter $4,093.39
3-375DAFG 3" 3-375DAFG Reduced Principle Detector Assy, Flanged Body, Flanged OSY x Grooved OSY, CFM Meter $4,093.39
3-375DASCFMFG 3" 3-375DASCFMFG Reduced Principle Detector Assy, Flanged Body, Flanged OSY x Grooved OSY, SCFM Meter $4,195.80
3-375DAL 3" 3-375DAL Reduced Principle Detector Assy, Flanged Body, Flanged x Flanged, Less Gate Valves $2,723.06
3-375DALCFM 3" 3-375DALCFM Reduced Principle Detector Assy, Flanged Body, Flanged x Flanged, Less Gate Valves, CFM Meter $2,723.06
3-375DALSCFM 3" 3-375DALSCFM Reduced Principle Detector Assy, Flanged Body, Flanged x Flanged, Less Gate Valves, SCFM Meter $2,825.56
3-375DALLM 3" 3-375DALLM Reduced Principle Detector Assy, Flanged Body, Flanged x Flanged, Less Meter, Less Gate Valves $2,562.19
3-375DAG 3" 3-375DAG Reduced Principle Detector Assy, Flanged Body, Grooved OSY x Grooved OSY $4,093.39
3-375DACFMG 3" 3-375DACFMG Reduced Principle Detector Assy, Flanged Body, Grooved OSY x Grooved OSY, CFM Meter $4,093.39
3-375DASCFMG 3" 3-375DASCFMG Reduced Principle Detector Assy, Flanged Body, Grooved OSY x Grooved OSY, SCFM Meter $4,195.80
SKU Repair Kits 3" Price Qty
RK212-375DAC 3" RK212-375DAC Repair Kit - 375DA/475DA Rubber Only (checks & relief), incl by-pass parts $132.07
SKU Description 2-1/2" Price Qty
212-375DA 2 1/2" 212-375DA Reduced Principle Detector Assy, Flanged Body, Flanged OSY x Flanged OSY $3,941.58
212-375DACFM 2 1/2" 212-375DACFM Reduced Principle Detector Assy, Flanged Body, Flanged OSY x Flanged OSY, CFM Meter $3,941.58
212-375DALM 2 1/2" 212-375DALM Reduced Principle Detector Assy, Flanged Body, Flanged OSY x Flanged OSY, Less Meter $3,780.62
212-375DASCFM 2 1/2" 212-375DASCFM Reduced Principle Detector Assy, Flanged Body, Flanged OSY x Flanged OSY, SCFM Meter $4,044.19
212-375DACFMFG 2 1/2" 212-375DACFMFG Reduced Principle Detector Assy, Flanged Body, Flanged OSY x Grooved OSY, CFM Meter $3,941.58
212-375DAFG 2 1/2" 212-375DAFG Reduced Principle Detector Assy, Flanged Body, Flanged OSY x Grooved OSY, CFM Meter $3,941.58
212-375DALMFG 2 1/2" 212-375DALMFG Reduced Principle Detector Assy, Flanged Body, Flanged OSY x Grooved OSY, Less Meter $3,780.62
212-375DASCFMFG 2 1/2" 212-375DASCFMFG Reduced Principle Detector Assy, Flanged Body, Flanged OSY x Grooved OSY, SCFM Meter $4,044.19
212-375DAL 2 1/2" 212-375DAL Reduced Principle Detector Assy, Flanged Body, Flanged x Flanged, Less Gate Valves $2,712.74
212-375DALCFM 2 1/2" 212-375DALCFM Reduced Principle Detector Assy, Flanged Body, Flanged x Flanged, Less Gate Valves, CFM Meter $2,712.83
212-375DALSCFM 2 1/2" 212-375DALSCFM Reduced Principle Detector Assy, Flanged Body, Flanged x Flanged, Less Gate Valves, SCFM Meter $2,815.28
212-375DAOSYNRSG 2 1/2" 212-375DAOSYNRSG Reduced Principle Detector Assy, Flanged Body, Grooved OSY x Grooved NRS $3,823.82
212-375DAG 2 1/2" 212-375DAG Reduced Principle Detector Assy, Flanged Body, Grooved OSY x Grooved OSY $3,941.58
212-375DACFMG 2 1/2" 212-375DACFMG Reduced Principle Detector Assy, Flanged Body, Grooved OSY x Grooved OSY, CFM Meter $3,941.58
212-375DALMG 2 1/2" 212-375DALMG Reduced Principle Detector Assy, Flanged Body, Grooved OSY x Grooved OSY, Less Meter $3,780.62
212-375DASCFMG 2 1/2" 212-375DASCFMG Reduced Principle Detector Assy, Flanged Body, Grooved OSY x Grooved OSY, SCFM Meter $4,044.19
SKU Repair Kits 2-1/2" Price Qty
RK212-375DAC 3" RK212-375DAC Repair Kit - 375DA/475DA Rubber Only (checks & relief), incl by-pass parts $132.07
SKU Description 2" Price Qty
2-375DA 2" 2-375DA Reduced Principle Detector Assy, Flanged Body, FNPT OSY x FNPT OSY $4,194.95
2-375DACFM 2" 2-375DACFM Reduced Principle Detector Assy, Flanged Body, FNPT OSY x FNPT OSY, CFM Meter $4,444.85
2-375DALM 2" 2-375DALM Reduced Principle Detector Assy, Flanged Body, FNPT OSY x FNPT OSY, Less Meter $4,192.68
2-375DASCFM 2" 2-375DASCFM Reduced Principle Detector Assy, Flanged Body, FNPT OSY x FNPT OSY, SCFM Meter $4,549.32
Documents
Specification Sheet - 2 1/2" thru 10" PDF icon
Installation and Maintenance Instructions 2 1/2" thru 6" PDF icon
Installation and Maintenance Instructions 8" &10" PDF icon
Repair Parts PDF icon
Videos
Model 375 (8" & 10") Repair Video YouTube Videos
Troubleshooting Pressure Relief Valve Discharge Video YouTube Videos
Model 375 (2 1/2" & 3") Repair Video YouTube Videos
Model 375 (4" & 6") Repair Video YouTube Videos
How Detector Assemblies Function Video YouTube Videos


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  • I have been out-of-touch with Air Delights for some years. When I decided to return, they were there, ready and able to help me. They even had my old order records from years back. This was a great help to me. I didn't even need to order new dispensers , because my old ones worked just like new.

  • Due to our order history they followed up with a phone call to ensure what was ordered was actually what we wanted. Turns out we ordered incorrectly. They made the adjustment on the phone and shipped the correct item.

  • From seeing the pop-up ad, through ordering the needed parts cheaper than factory pricing, to installing for a flushable toilet again---THREE DAYS ONLY!!! Impressive, outstanding, and better than most!

  • I've been using products from Air Delights for years and have loved all of the products that I purchased. There have never been any problems with the products or customer service. I've actually gotten some of my friends interested in the products.

  • I've dealt with you folks before so I know the kind of service I will receive. I like the fact that there is a place like yours that people can shop at and get the service we deserve. I've decided we needed another set of this product in our upstairs bathroom since we have someone else utilizing the downstairs bathroom. GREAT SERVICE!

  • They expedited shipping to me and got it her super fast and were MORE than courteous when I called. The Best!

  • This commercial supplier has always been patient with my household sized orders. They even called once when what I had ordered was not the same as my previous orders. Saved me from having to return a mistaken order. I love their air freshener products. It's not always easy to find air fresheners that I can use with my allergies.

  • Your company is the best.You save me money on the part that I needed.Also I will be order off your company if I need anything else.

  • Our Flushmate 503 developed a broken cartridge at 4PM central time. AirDelights is pacific time, so by the time I placed my order it was 2:47 pacific time. They sent the parts by FEDEX next day standard delivery. I had the parts in my hand in St Louis MO at 10:18 AM the next morning. The order was before 3PM so they shipped the same day.

  • Ease of ordering and length of time on delivery and the pleasing aroma of items purchased are all great! I will be purchasing more in the near future. Thanks to everyone involved with my order.


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