Pentair Threaded Winterizing Plug 1-1/2 in. | Vac-Mate Vacuum/Skimmer | R22010Z Pool Liner Insulation Flow direction matters — the

Flow direction matters — the pitot tube has to face into the flow (there's an arrow on the meter)

The "-M" designation identifies this as the Microban antimicrobial variant of the standard PMA40L-F2M

source that companion part at the same time to avoid a second service visit

pre-assembled on the manifold

Pentair Threaded Winterizing Plug 1-1/2 in. | Vac-Mate Vacuum/Skimmer | R22010Z Pool Liner Insulation Flow direction matters — theThe Pentair Threaded Plug 1 1 2 in. (R22010Z) is the OEM replacement winterizing plug for the Pentair Vac Mate Vacuum Skimmer. This polyurethane plug seals the 1 1 2 in. pipe thread opening during winterization, preventing water intrusion and protecting internal components from freeze damage during the off season. When a skimmer or vacuum fitting is left unsealed over winter, water can enter the plumbing lines and expand during freeze cycles, cracking