Delavan 7900C Cast Iron Roller Pump shipclass=300 but the 6 o-rings and

but the 6 o-rings and 4 spring and disc assemblies

It's rated to 600 PSI WOG and 150 PSI WSP

Every 6 months to a year

Honda makes this reliable 5

-Stainless steel shaft sleeve with O-Ring leak protection

Delavan 7900C Cast Iron Roller Pump shipclass=300 but the 6 o-rings andDelavan Roller Pump Model: 7900C Delavan designs, engineers and manufactures a wide variety of roller pumps to meet the widest ranges of low volume, moderate pressure pumping applications. To ensure the best performance for your investment, we incorporate such features as "Ultra" rollers, heavy duty sealed bearings, Viton seal rings, stainless steel shafts and rotors, and close tolerance machining. All are standard.