Moxweyeni 2 Pcs Injection Check Valve 1/4-Inch UCDBINJ Compatible with Stenner Pumps 45, 85, 100 & 170, Classic, Single Head, S420, S128, S10P, VX, SV, S Series Pump Parts, Stainless Steel

["Wide Compatibility: this Injection Check Valve 1/4-Inches is compatible with Stenner pumps 45/85/100/170, Classic Series, Single Head, S420, S128, S10P, VX, SV and most S series (Excludes S40/S4V/S44/S4M/S50/S54/S5V)","Backflow Prevention Equipment Protection: this 1/4 check valve is designed to stops medium backflow, shield your pump from damage and maintains stable system operation; Suitable for Peristaltic & Chlorinator pump","Chemical-resistant Construction: made from stainless steel to withstand common chemicals and minimize leakage, this check valve compatible with Stenner pump undergoes rigorous quality tests for reliable use","Easy Installation Maintenance: just tighten the check valve to your pump's inlet/outlet threaded ports for installation or replacement; It simplifies pump maintenance, working seamlessly with 1/4 check valve configuration","Ready-to-use Replacement Kit: includes 2 pcs UCDBINJ Injection Check Valve 1/4-Inches, MCCVDB0 duckbill valve and UCAK200 1/4 ferrule, no need to buy separate parts, great for main use and backup; Ideal for completing 1/4 check valve setups quickly"]