Product Name: Martin 20" Big Blue Water Filter Housing Model NO.: HB-20BBK10 Name: Martin 20" Big Blue Water Filter Housing Model: 20" Big Blue Trademark: Martin Transport Package: Carton Specification: CE Origin: Shanghai, China HS Code: 842199 Product Description Martin 20" Big Blue Water Filter HousingFilter Housings are manufactured from the highest quality, food grade 100% constructed of reinforced polypropylene & AS or PC, EPDM O-Ring seals. It's ideal for RO and Filtration systems. Fits most standard 9 3/4" and 19 1/2" filter cartridges.1. Residential Filter HousingsOperating Data1) Working Pressure: 125psi/ (8.5kg/cm2)2) Max. Temperature: 120°F (50°C)Testing Data1) Bursting Pressure: 500 PSI2) Cycle Test: 0-150 psi, 100,000 cycles2. 2.5" High Flow Filter HousingsFilter Housings are manufactured from the highest quality, food grade 100% constructed of reinforced polypropylene & AS or PC, EPDM O-Ring seals. With Pressure Release Valve, it's ideal for RO and Filtration systems. Both for residential and commercial use such as, irrigation, farm, food industry and others Fits most standard 9 3/4" and 19 1/2" filter cartridges.Operating Data1) Working Pressure: 150PSI (10kg/cm²)2) Max. Temperature: 120°F (50°C)Testing Data1) Bursting Pressure: 525PSI (35kg/cm²)2) Cycle Test: 0-150 psi, 100,000 cycles3. 4.5" Big Blue Filter HousingsFilter Housings are manufactured from the highest quality, food grade 100% constructed of reinforced polypropylene & PC, EPDM O-Ring seals. With Pressure Release Valve, it's ideal for RO and Filtration systems. Both for residential and commercial use such as, irrigation, farm, food industry and others. Fits most 9 3/4" and 19 1/2" big blue filter cartridges.Operating Data1) Working Pressure: 150PSI (10kg/cm²)2) Max. Temperature: 120°F (50°C)Testing Data1) Bursting Pressure: 525PSI (35kg/cm²)2) Cycle Test: 0-150 psi, 100,000 cycles