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Air Delights Commercial Restroom Products

Wilkins Reduced Pressure Principle Assembly

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

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

Reduced Pressure Principle Assembly w/ Integral Relief Valve Monitor Switch

Ideal where lead-free* valves are required. Designed for installation on potable water lines to protect against both backsiphonage and backpressure of contaminated water into the potable water supply. Assembly shall provide protection where a potential health hazard exists.

SKU Description 10" Price Qty
10-375MSFSC 10" 10-375MSFSC Reduced Pressure Principle Assy, Lead-Free, Flanged Body, F NRS x F NRS, RV Monitor Switch, Epoxy Coated Straine $12,377.85
10-375MS 10" 10-375MS Reduced Pressure Principle Assy, Lead-Free, Flanged Body, Flanged NRS x Flanged NRS, RV Monitor Switch $10,307.45
10-375MSOSY 10" 10-375MSOSY Reduced Pressure Principle Assy, Lead-Free, Flanged Body, Flanged OSY x Flanged OSY, RV Monitor Switch $10,462.99
10-375MSL 10" 10-375MSL Reduced Pressure Principle Assy, Lead-Free, Flanged Body, Flanged x Flanged, RV Monitor Switch, Less Gate Valves $7,843.35
SKU Repair Kits 10" Price Qty
3711-CU-XL 8"-10" CNTRL ASSY, Lead-Free $978.87
RK8-375R 8" RK8-375R Repair Kit - 375/475 Relief Valve, Rubber Only $59.62
RK8-375 8" RK8-375 Repair Kit - 375/475 Relief Valve Complete $184.50
RK8-350 RK8-350 Repair Kit - 375/475 Checks Only $168.43
SKU Description 8" Price Qty
8-375MSFSC-AG 8" 8-375MSFSC-AG Reduced Pressure Principle Assy, Lead-Free, Flanged Body, F NRS x F NRS, RV Monitor Switch, FSC Strainer, Air G $8,800.53
8-375MS 8" 8-375MS Reduced Pressure Principle Assy, Lead-Free, Flanged Body, Flanged NRS x Flanged NRS, RV Monitor Switch $7,479.60
8-375MSOSY 8" 8-375MSOSY Reduced Pressure Principle Assy, Lead-Free, Flanged Body, Flanged OSY x Flanged OSY, RV Monitor Switch $7,961.68
8-375MSL 8" 8-375MSL Reduced Pressure Principle Assy, Lead-Free, Flanged Body, Flanged x Flanged, RV Monitor Switch, Less Gate Valves $5,846.35
SKU Repair Kits 8" Price Qty
3711-CU-XL 8"-10" CNTRL ASSY, Lead-Free $978.87
RK8-375R 8" RK8-375R Repair Kit - 375/475 Relief Valve, Rubber Only $59.62
RK8-375 8" RK8-375 Repair Kit - 375/475 Relief Valve Complete $184.50
RK8-350 RK8-350 Repair Kit - 375/475 Checks Only $168.43
SKU Description 6" Price Qty
6-375MSFSC 6" 6-375MSFSC Reduced Pressure Principle Assy, Lead-Free, Flanged Body, F NRS x F NRS, RV Monitor Switch, Epoxy Coated Strainer $5,186.68
6-375MS 6" 6-375MS Reduced Pressure Principle Assy, Lead-Free, Flanged Body, Flanged NRS x Flanged NRS, RV Monitor Switch $4,558.04
6-375MSOSY 6" 6-375MSOSY Reduced Pressure Principle Assy, Lead-Free, Flanged Body, Flanged OSY x Flanged OSY, RV Monitor Switch $4,934.68
6-375MSL 6" 6-375MSL Reduced Pressure Principle Assy, Lead-Free, Flanged Body, Flanged x Flanged, RV Monitor Switch, Less Gate Valves $3,483.60
6-375MSOSYG 6" 6-375MSOSYG Reduced Pressure Principle Assy, Lead-Free, Flanged Body, Grooved OSY x Grooved OSY, RV Monitor Switch $4,934.68
SKU Repair Kits 6" Price Qty
3707-CU-XL Wilkins Relief Valve Assy $796.20
RK212-375R 6" RK212-375R Repair Kit - 375/475 Relief Valve, Rubber Only $54.23
RK212-375 6" RK212-375 Repair Kit - 375/475 Relief Valve Complete $78.15
RK6-350 6" RK6-350 Repair Kit - 375/475 Checks Only $152.00
SKU Description 4" Price Qty
4-375MSFSC-AG 4" 4-375MSFSC-AG Reduced Pressure Principle Assy, Lead-Free, Flanged Body, F NRS x F NRS, RV Monitor Switch, FSC Strainer, Air G $4,784.20
4-375MS 4" 4-375MS Reduced Pressure Principle Assy, Lead-Free, Flanged Body, Flanged NRS x Flanged NRS, RV Monitor Switch $3,362.21
4-375MSOSY 4" 4-375MSOSY Reduced Pressure Principle Assy, Lead-Free, Flanged Body, Flanged OSY x Flanged OSY, RV Monitor Switch $3,548.13
4-375MSL 4" 4-375MSL Reduced Pressure Principle Assy, Lead-Free, Flanged Body, Flanged x Flanged, RV Monitor Switch, Less Gate Valves $2,434.23
SKU Repair Kits 4" Price Qty
3707-CU-XL Wilkins Relief Valve Assy $796.20
RK212-375R 6" RK212-375R Repair Kit - 375/475 Relief Valve, Rubber Only $54.23
RK212-375 6" RK212-375 Repair Kit - 375/475 Relief Valve Complete $78.15
RK4-350 4" RK4-350 Repair Kit - 375/475 Checks Only $90.92
SKU Description 3" Price Qty
3-375MSFSC 3" 3-375MSFSC Reduced Pressure Principle Assy, Lead-Free, Flanged Body, F NRS x F NRS, RV Monitor Switch, Epoxy Coated Strainer $2,832.32
3-375MS 3" 3-375MS Reduced Pressure Principle Assy, Lead-Free, Flanged Body, Flanged NRS x Flanged NRS, RV Monitor Switch $2,598.99
3-375MSOSY 3" 3-375MSOSY Reduced Pressure Principle Assy, Lead-Free, Flanged Body, Flanged OSY x Flanged OSY, RV Monitor Switch $2,914.65
3-375MSL 3" 3-375MSL Reduced Pressure Principle Assy, Lead-Free, Flanged Body, Flanged x Flanged, RV Monitor Switch, Less Gate Valves $1,829.27
3-375MSG 3" 3-375MSG Reduced Pressure Principle Assy, Lead-Free, Flanged Body, Grooved NRS x Grooved NRS, RV Monitor Switch $2,598.99
SKU Repair Kits 3" Price Qty
3707-CU-XL Wilkins Relief Valve Assy $796.20
RK212-375R 6" RK212-375R Repair Kit - 375/475 Relief Valve, Rubber Only $54.23
RK212-375 6" RK212-375 Repair Kit - 375/475 Relief Valve Complete $78.15
RK4-350 4" RK4-350 Repair Kit - 375/475 Checks Only $90.92
SKU Description 2-1/2" Price Qty
212-375MSFSC 2 1/2" 212-375MSFSC Reduced Pressure Principle Assy, Lead-Free, Flanged Body, F NRS x F NRS, RV Monitor Switch, Epoxy Coated Str $2,702.32
212-375MS 2 1/2" 212-375MS Reduced Pressure Principle Assy, Lead-Free, Flanged Body, Flanged NRS x Flanged NRS, RV Monitor Switch $2,513.72
212-375MSOSY 2 1/2" 212-375MSOSY Reduced Pressure Principle Assy, Lead-Free, Flanged Body, Flanged OSY x Flanged OSY, RV Monitor Switch $2,793.41
212-375MSL 2 1/2" 212-375MSL Reduced Pressure Principle Assy, Lead-Free, Flanged Body, Flanged x Flanged, RV Monitor Switch, Less Gate Valv $1,849.88
SKU Repair Kits 2-1/2" Price Qty
3707-CU-XL Wilkins Relief Valve Assy $796.20
RK212-375R 6" RK212-375R Repair Kit - 375/475 Relief Valve, Rubber Only $54.23
RK212-375 6" RK212-375 Repair Kit - 375/475 Relief Valve Complete $78.15
RK4-350 4" RK4-350 Repair Kit - 375/475 Checks Only $90.92
Documents
Installation and Maintenance Instructions PDF icon
Specification Sheet 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


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