This is a Pentair 27001-0130S Spring Bypass Check Valve for PLM Pool Filter Systems, System:2 Modular Media Filters, System:2 Modular D.E. Filters.
Used In:
- Sta-Rite PLD Aboveground D.E. Filter
- Sta-Rite PLM Aboveground Filter System (2009 and beyond)
- Sta-Rite System 2 Modular Media PLM Filter
- Sta-Rite System 2 PLD Series (PLD50/PLD70) Modular D.E. Filter