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Wilkins Reduced Pressure Principle Assembly

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

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

Designed for installation on potable water lines to protect against both backsiphonage and backpressure of contaminated water into the potable water supply. The Model 375A provides protection where a potential health hazard exists. Ideal for use where lead-free* valves are required.

SKU Description 10" Price Qty
10-375A 10" 10-375A Reduced Pressure Principle Assy, Lead-Free, Grooved Body, Flanged NRS x Flanged NRS $12,492.65
10-375AOSY 10" 10-375AOSY Reduced Pressure Principle Assy, Lead-Free, Grooved Body, Flanged OSY x Flanged OSY $12,692.40
10-375AOSYFSC 10" 10-375AOSYFSC Reduced Pressure Principle Assy, Lead-Free, Grooved Body, Flanged OSY x Flanged OSY, Epoxy Coated Strainer $15,350.87
10-375ABGVIC 10" 10-375ABGVIC Reduced Pressure Principle Assy, Lead-Free, Grooved Body, Grooved BGVIC x Grooved BGVIC $14,697.98
10-375ABGVICPIG 10" 10-375ABGVICPIG Reduced Pressure Principle Assy, Lead-Free, Grooved Body, Grooved BGVIC x Grooved PI $13,798.99
10-375AOSYG 10" 10-375AOSYG Reduced Pressure Principle Assy, Lead-Free, Grooved Body, Grooved OSY x Grooved OSY $12,692.40
10-375AL 10" 10-375AL Reduced Pressure Principle Assy, Lead-Free, Grooved Body, Grooved x Grooved, Less Gate Valves $8,462.03
SKU Repair Kits 10" Price Qty
RK8-375R 8" RK8-375R Repair Kit - 375/475 Relief Valve, Rubber Only $76.55
RK8-375 8" RK8-375 Repair Kit - 375/475 Relief Valve Complete $236.90
RK8-350 RK8-350 Repair Kit - 375/475 Checks Only $216.26
3711-CU-XL 8"-10" CNTRL ASSY, Lead-Free $1,256.87
SKU Description 8" Price Qty
8-375A 8" 8-375A Reduced Pressure Principle Assy, Lead-Free, Grooved Body, Flanged NRS x Flanged NRS $8,861.69
8-375AFSC 8" 8-375AFSC Reduced Pressure Principle Assy, Lead-Free, Grooved Body, Flanged NRS x Flanged NRS, Epoxy Coated Strainer $10,397.84
8-375AFS 8" 8-375AFS Reduced Pressure Principle Assy, Lead-Free, Grooved Body, Flanged NRS x Flanged NRS, Strainer $10,246.91
8-375AFG 8" 8-375AFG Reduced Pressure Principle Assy, Lead-Free, Grooved Body, Flanged NRS x Grooved NRS $8,861.74
8-375AOSY 8" 8-375AOSY Reduced Pressure Principle Assy, Lead-Free, Grooved Body, Flanged OSY x Flanged OSY $9,480.67
8-375AOSYFSC 8" 8-375AOSYFSC Reduced Pressure Principle Assy, Lead-Free, Grooved Body, Flanged OSY x Flanged OSY, Epoxy Coated Strainer $11,016.96
8-375AOSYFS 8" 8-375AOSYFS Reduced Pressure Principle Assy, Lead-Free, Grooved Body, Flanged OSY x Flanged OSY, FS Strainer $10,876.10
8-375AOSYPI 8" 8-375AOSYPI Reduced Pressure Principle Assy, Lead-Free, Grooved Body, Flanged OSY x Flanged PI $9,480.73
8-375AOSYBGVIC 8" 8-375AOSYBGVIC Reduced Pressure Principle Assy, Lead-Free, Grooved Body, Flanged OSY x Grooved BGVIC $10,122.24
8-375AOSYFG 8" 8-375AOSYFG Reduced Pressure Principle Assy, Lead-Free, Grooved Body, Flanged OSY x Grooved OSY $9,480.73
8-375AOSYPIFG 8" 8-375AOSYPIFG Reduced Pressure Principle Assy, Lead-Free, Grooved Body, Flanged OSY x Grooved PI $9,480.73
8-375ABGVIC 8" 8-375ABGVIC Reduced Pressure Principle Assy, Lead-Free, Grooved Body, Grooved BGVIC x Grooved BGVIC $10,608.78
8-375ABGVICPIG 8" 8-375ABGVICPIG Reduced Pressure Principle Assy, Lead-Free, Grooved Body, Grooved BGVIC x Grooved PI $10,122.24
8-375AG 8" 8-375AG Reduced Pressure Principle Assy, Lead-Free, Grooved Body, Grooved NRS x Grooved NRS $8,861.74
8-375AOSYG 8" 8-375AOSYG Reduced Pressure Principle Assy, Lead-Free, Grooved Body, Grooved OSY x Grooved OSY $9,480.73
8-375AOSYPIG 8" 8-375AOSYPIG Reduced Pressure Principle Assy, Lead-Free, Grooved Body, Grooved OSY x Grooved PI $9,480.73
8-375ALBS 8" 8-375ALBS Reduced Pressure Principle Assy, Lead-Free, Grooved Body, Grooved x Grooved, BS Assembly, Less Gate Valves $5,125.31
8-375AL 8" 8-375AL Reduced Pressure Principle Assy, Lead-Free, Grooved Body, Grooved x Grooved, Less Gate Valves $6,764.64
SKU Repair Kits 8" Price Qty
RK8-350 RK8-350 Repair Kit - 375/475 Checks Only $216.26
RK8-375R 8" RK8-375R Repair Kit - 375/475 Relief Valve, Rubber Only $76.55
RK8-375 8" RK8-375 Repair Kit - 375/475 Relief Valve Complete $236.90
3711-CU-XL 8"-10" CNTRL ASSY, Lead-Free $1,256.87
SKU Description 6" Price Qty
6-375A 6" 6-375A Reduced Pressure Principle Assy, Lead-Free, Grooved Body, Flanged NRS x Flanged NRS $5,267.78
6-375AFSC 6" 6-375AFSC Reduced Pressure Principle Assy, Lead-Free, Grooved Body, Flanged NRS x Flanged NRS, Epoxy Coated Strainer $6,074.95
6-375AFS 6" 6-375AFS Reduced Pressure Principle Assy, Lead-Free, Grooved Body, Flanged NRS x Flanged NRS, Strainer $5,608.76
6-375AFG 6" 6-375AFG Reduced Pressure Principle Assy, Lead-Free, Grooved Body, Flanged NRS x Grooved NRS $5,267.90
6-375AOSY 6" 6-375AOSY Reduced Pressure Principle Assy, Lead-Free, Grooved Body, Flanged OSY x Flanged OSY $5,751.44
6-375AOSYFSC 6" 6-375AOSYFSC Reduced Pressure Principle Assy, Lead-Free, Grooved Body, Flanged OSY x Flanged OSY, Epoxy Coated Strainer $6,558.68
6-375AOSYFS 6" 6-375AOSYFS Reduced Pressure Principle Assy, Lead-Free, Grooved Body, Flanged OSY x Flanged OSY, FS Strainer $6,069.55
6-375AOSYPI 6" 6-375AOSYPI Reduced Pressure Principle Assy, Lead-Free, Grooved Body, Flanged OSY x Flanged PI $5,751.38
6-375AOSYBGVICFG 6" 6-375AOSYBGVICFG Reduced Pressure Principle Assy, Lead-Free, Grooved Body, Flanged OSY x Grooved BGVIC $5,756.75
6-375AOSYFG 6" 6-375AOSYFG Reduced Pressure Principle Assy, Lead-Free, Grooved Body, Flanged OSY x Grooved OSY $5,751.38
6-375AOSYPIFG 6" 6-375AOSYPIFG Reduced Pressure Principle Assy, Lead-Free, Grooved Body, Flanged OSY x Grooved PI $5,751.38
6-375APIOSY 6" 6-375APIOSY Reduced Pressure Principle Assy, Lead-Free, Grooved Body, Flanged PI x Flanged OSY $5,751.38
6-375ABGVIC 6" 6-375ABGVIC Reduced Pressure Principle Assy, Lead-Free, Grooved Body, Grooved BGVIC x Grooved BGVIC $6,033.43
6-375ABGVICPIG 6" 6-375ABGVICPIG Reduced Pressure Principle Assy, Lead-Free, Grooved Body, Grooved BGVIC x Grooved PI $5,756.75
6-375ABGVICLG 6" 6-375ABGVICLG Reduced Pressure Principle Assy, Lead-Free, Grooved Body, Grooved BGVIC x Grooved, Less Outlet Gate Valve $4,701.77
6-375AGF 6" 6-375AGF Reduced Pressure Principle Assy, Lead-Free, Grooved Body, Grooved NRS x Flanged NRS $5,267.90
6-375AG 6" 6-375AG Reduced Pressure Principle Assy, Lead-Free, Grooved Body, Grooved NRS x Grooved NRS $5,267.90
6-375AOSYGF 6" 6-375AOSYGF Reduced Pressure Principle Assy, Lead-Free, Grooved Body, Grooved OSY x Flanged OSY $5,480.16
6-375AOSYG 6" 6-375AOSYG Reduced Pressure Principle Assy, Lead-Free, Grooved Body, Grooved OSY x Grooved OSY $5,751.38
6-375AOSYPIG 6" 6-375AOSYPIG Reduced Pressure Principle Assy, Lead-Free, Grooved Body, Grooved OSY x Grooved PI $5,751.38
6-375ALBS 6" 6-375ALBS Reduced Pressure Principle Assy, Lead-Free, Grooved Body, Grooved x Grooved, BS Assembly, Less Gate Valves $2,912.92
6-375AL 6" 6-375AL Reduced Pressure Principle Assy, Lead-Free, Grooved Body, Grooved x Grooved, Less Gate Valves $3,888.06
6-375ALFSC 6" 6-375ALFSC Reduced Pressure Principle Assy, Lead-Free, Grooved Body, Grooved x Grooved, Less Gate Valves, Epoxy Coated Strain $4,607.53
6-375ALFS 6" 6-375ALFS Reduced Pressure Principle Assy, Lead-Free, Grooved Body, Grooved x Grooved, Less Gate Valves, FS Strainer $4,422.49
SKU Repair Kits 6" Price Qty
RK6-350 6" RK6-350 Repair Kit - 375/475 Checks Only $195.17
RK212-375R 6" RK212-375R Repair Kit - 375/475 Relief Valve, Rubber Only $69.64
RK212-375 6" RK212-375 Repair Kit - 375/475 Relief Valve Complete $100.34
3707-CU-XL Wilkins Relief Valve Assy $1,022.32
SKU Description 4" Price Qty
4-375A 4" 4-375A Reduced Pressure Principle Assy, Lead-Free, Grooved Body, Flanged NRS x Flanged NRS $3,738.10
4-375AFSC 4" 4-375AFSC Reduced Pressure Principle Assy, Lead-Free, Grooved Body, Flanged NRS x Flanged NRS, Epoxy Coated Strainer $4,231.96
4-375AFS 4" 4-375AFS Reduced Pressure Principle Assy, Lead-Free, Grooved Body, Flanged NRS x Flanged NRS, Strainer $3,995.45
4-375AFG 4" 4-375AFG Reduced Pressure Principle Assy, Lead-Free, Grooved Body, Flanged NRS x Grooved NRS $3,738.17
4-375AOSY 4" 4-375AOSY Reduced Pressure Principle Assy, Lead-Free, Grooved Body, Flanged OSY x Flanged OSY $3,976.96
4-375AOSYFSC 4" 4-375AOSYFSC Reduced Pressure Principle Assy, Lead-Free, Grooved Body, Flanged OSY x Flanged OSY, Epoxy Coated Strainer $4,470.62
4-375AOSYFS 4" 4-375AOSYFS Reduced Pressure Principle Assy, Lead-Free, Grooved Body, Flanged OSY x Flanged OSY, FS Strainer $4,229.69
4-375AOSYPI 4" 4-375AOSYPI Reduced Pressure Principle Assy, Lead-Free, Grooved Body, Flanged OSY x Flanged PI $3,976.96
4-375AOSYBGVICFG 4" 4-375AOSYBGVICFG Reduced Pressure Principle Assy, Lead-Free, Grooved Body, Flanged OSY x Grooved BGVIC $3,956.24
4-375AOSYFG 4" 4-375AOSYFG Reduced Pressure Principle Assy, Lead-Free, Grooved Body, Flanged OSY x Grooved OSY $3,976.96
4-375AOSYPIFG 4" 4-375AOSYPIFG Reduced Pressure Principle Assy, Lead-Free, Grooved Body, Flanged OSY x Grooved PI $3,976.96
4-375APIOSY 4" 4-375APIOSY Reduced Pressure Principle Assy, Lead-Free, Grooved Body, Flanged PI x Flanged OSY $3,902.46
4-375ABGVIC 4" 4-375ABGVIC Reduced Pressure Principle Assy, Lead-Free, Grooved Body, Grooved BGVIC x Grooved BGVIC $3,619.08
4-375ABGVICPIG 4" 4-375ABGVICPIG Reduced Pressure Principle Assy, Lead-Free, Grooved Body, Grooved BGVIC x Grooved PI $3,956.24
4-375AGF 4" 4-375AGF Reduced Pressure Principle Assy, Lead-Free, Grooved Body, Grooved NRS x Flanged NRS $3,738.17
4-375AG 4" 4-375AG Reduced Pressure Principle Assy, Lead-Free, Grooved Body, Grooved NRS x Grooved NRS $3,738.17
4-375AOSYGF 4" 4-375AOSYGF Reduced Pressure Principle Assy, Lead-Free, Grooved Body, Grooved OSY x Flanged OSY $3,902.46
4-375AOSYBGVICG 4" 4-375AOSYBGVICG Reduced Pressure Principle Assy, Lead-Free, Grooved Body, Grooved OSY x Grooved BGVIC $3,956.24
4-375AOSYG 4" 4-375AOSYG Reduced Pressure Principle Assy, Lead-Free, Grooved Body, Grooved OSY x Grooved OSY $3,976.96
4-375AOSYPIG 4" 4-375AOSYPIG Reduced Pressure Principle Assy, Lead-Free, Grooved Body, Grooved OSY x Grooved PI $3,976.96
4-375APIBGVICG 4" 4-375APIBGVICG Reduced Pressure Principle Assy, Lead-Free, Grooved Body, Grooved PI x Grooved BGVIC $3,956.24
4-375APIG 4" 4-375APIG Reduced Pressure Principle Assy, Lead-Free, Grooved Body, Grooved PI x Grooved PI $3,976.96
4-375ALBS 4" 4-375ALBS Reduced Pressure Principle Assy, Lead-Free, Grooved Body, Grooved x Grooved, BS Assembly, Less Gate Valves $1,955.47
4-375AL 4" 4-375AL Reduced Pressure Principle Assy, Lead-Free, Grooved Body, Grooved x Grooved, Less Gate Valves $2,546.75
4-375ALFSC 4" 4-375ALFSC Reduced Pressure Principle Assy, Lead-Free, Grooved Body, Grooved x Grooved, Less Gate Valves, Epoxy Coated Strain $2,983.51
4-375ALFS 4" 4-375ALFS Reduced Pressure Principle Assy, Lead-Free, Grooved Body, Grooved x Grooved, Less Gate Valves, FS Strainer $2,826.28
SKU Repair Kits 4" Price Qty
RK212-375R 6" RK212-375R Repair Kit - 375/475 Relief Valve, Rubber Only $69.64
RK4-350 4" RK4-350 Repair Kit - 375/475 Checks Only $116.74
RK212-375 6" RK212-375 Repair Kit - 375/475 Relief Valve Complete $100.34
3707-CU-XL Wilkins Relief Valve Assy $1,022.32
SKU Description 3" Price Qty
3-375AL 3" 3-375AL Reduced Pressure Principle Assy, Lead-Free, 4" Grooved Body, 4"x3" Grooved Couplings, Less Gate Valves $2,299.76
3-375AOSY 3" 3-375AOSY Reduced Pressure Principle Assy, Lead-Free, 4" Grooved Body, Flanged OSY x Flanged OSY $3,163.56
3-375ABGVIC 3" 3-375ABGVIC Reduced Pressure Principle Assy, Lead-Free, 4" Grooved Body, Grooved BGVIC x Grooved BGVIC $3,417.72
3-375AGF 3" 3-375AGF Reduced Pressure Principle Assy, Lead-Free, 4" Grooved Body, Grooved NRS x Flanged NRS $2,758.19
3-375AG 3" 3-375AG Reduced Pressure Principle Assy, Lead-Free, 4" Grooved Body, Grooved NRS x Grooved NRS $2,758.19
3-375A 3" 3-375A Reduced Pressure Principle Assy, Lead-Free, Grooved Body, Flanged NRS x Flanged NRS $2,758.25
3-375AFSC 3" 3-375AFSC Reduced Pressure Principle Assy, Lead-Free, Grooved Body, Flanged NRS x Flanged NRS, Epoxy Coated Strainer $3,088.38
3-375AFSC-KIT 3" 3-375AFSC-KIT Reduced Pressure Principle Assy, Lead-Free, Grooved Body, Flanged NRS x Flanged NRS, Epoxy Coated Strainer, Kit $3,057.83
3-375AFG 3" 3-375AFG Reduced Pressure Principle Assy, Lead-Free, Grooved Body, Flanged NRS x Grooved NRS $2,758.19
3-375ABGVICPIG 3" 3-375ABGVICPIG Reduced Pressure Principle Assy, Lead-Free, Grooved Body, Grooved BGVIC x Grooved PI $3,261.05
3-375APIBGVICG 3" 3-375APIBGVICG Reduced Pressure Principle Assy, Lead-Free, Grooved Body, Grooved PI x Grooved BGVIC $3,261.05
SKU Repair Kits 3" Price Qty
RK212-375R 6" RK212-375R Repair Kit - 375/475 Relief Valve, Rubber Only $69.64
RK4-350 4" RK4-350 Repair Kit - 375/475 Checks Only $116.74
RK212-375 6" RK212-375 Repair Kit - 375/475 Relief Valve Complete $100.34
3707-CU-XL Wilkins Relief Valve Assy $1,022.32
SKU Description 2-1/2" Price Qty
212-375AL 2 1/2" 212-375AL Reduced Pressure Principle Assy, Lead-Free, 4" Grooved Body, 4"x2-1/2" Grooved Couplings, Less Gate Valves $2,299.76
212-375AOSY 2 1/2" 212-375AOSY Reduced Pressure Principle Assy, Lead-Free, 4" Grooved Body, Flanged OSY x Flanged OSY $3,007.84
212-375ABGVIC 2 1/2" 212-375ABGVIC Reduced Pressure Principle Assy, Lead-Free, 4" Grooved Body, Grooved BGVIC x Grooved BGVIC $3,249.38
212-375AOSYG 2 1/2" 212-375AOSYG Reduced Pressure Principle Assy, Lead-Free, 4" Grooved Body, Grooved OSY x Grooved OSY $3,007.90
212-375A 2 1/2" 212-375A Reduced Pressure Principle Assy, Lead-Free, Grooved Body, Flanged NRS x Flanged NRS $2,648.83
212-375ABGVICPIG 2 1/2" 212-375ABGVICPIG Reduced Pressure Principle Assy, Lead-Free, Grooved Body, Grooved BGVIC x Grooved PI $3,100.51
SKU Repair Kits 2-1/2" Price Qty
RK212-375R 6" RK212-375R Repair Kit - 375/475 Relief Valve, Rubber Only $69.64
RK4-350 4" RK4-350 Repair Kit - 375/475 Checks Only $116.74
RK212-375 6" RK212-375 Repair Kit - 375/475 Relief Valve Complete $100.34
3707-CU-XL Wilkins Relief Valve Assy $1,022.32
Documents
Specification Sheet PDF icon
Installation and Maintenance Instructuctions PDF icon
Installation and Maintenance Instructions 8" & 10" PDF icon
Repair Parts PDF icon
Videos
Troubleshooting Pressure Relief Discharge Video YouTube Videos
Model 375 (8" & 10") Repair Video YouTube Videos
Model 375 (2 1/2" & 3") Repair Video YouTube Videos
Model 375 (4" & 6") Repair Video YouTube Videos


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  • 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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