Pentair Air Orifice Kit | MasterTemp 400 | 77707-0113 Pool Winter Covers If your cleaner's venturi shell

If your cleaner's venturi shell color differs

How to Use Pool Refresh Water Moisturizer

Its 185 pleats of 4 oz

The 7CH-322 measures 7" OD and 8" length

The RLYSC relay kit provides the switching function that allows the LX220 and LX820 power centers to control the booster pump circuit within the Compool solar control system

Pentair Air Orifice Kit | MasterTemp 400 | 77707-0113 Pool Winter Covers If your cleaner's venturi shellThe Pentair Air Orifice Kit (77707 0113) is the OEM replacement air orifice assembly for the MasterTemp 400 gas heater, covering both natural gas (400NA) and liquid propane (400LP) configurations. IMPORTANT: KIT LISTING INCLUDES ITEMS 6 AND 7 This listing is a kit, not a single orifice. It includes Item Nos. 6 and 7 from the MasterTemp 400 exploded parts diagram. Confirm both components are required before ordering. IMPORTANT: HEATER COMPONENT