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(ST-31R) Filter Chemical Strainer with Check Valve. Features built-in stainless steel and Viton check valve to prevent water flow back into the soap solution. Internal brass weight keep soap strainer in the bottom of the soap container.
- 1/4" - 3/8" Hose Barb
Absolute must for down streaming. Helps the 1/4 hose stay in your SH tank.
Works as it should