System:3 Drain Adapter O-Ring clearance and reduced sanitizer efficiency

and reduced sanitizer efficiency

This Danger No Lifeguard Beyond This Point With Graphic Sign measures 12 x 18 inches

If cyanuric acid is present in the water at sufficient levels

you do not have to pull a difficult plunger or take your finger off a hole

System:3 Drain Adapter O-Ring clearance and reduced sanitizer efficiencyThis is an o ring designed for System: 3 1 1 2 inch filter drain adapters on Sta Rite and Pentair filters. This o ring is identical to: O 83, Advance OV11332, Harmsco 930, Hayward SP4000Z1, Jacuzzi 13102306R, Pentair PacFab 274494, Sta Rite U9156, U9185, U9374, and Sta Rite SwimQuip 355051424. This o ring has been manufactured in accordance with OEM specifications and are designed to meet or exceed the original manufacturer specifications.