Pentair Sta-Rite MasterTemp 300 Natural Gas Orifice (460753) powervac this Waterway gray skimmer lid

this Waterway gray skimmer lid is a practical replacement when the original lid needs to be renewed

The PS-851 part number makes it easier to verify the correct component before installation

Matching the correct gray vinyl return fitting helps preserve intended compatibility and visual consistency

supporting cleaner water and better day-to-day maintenance in systems built around the Auto-Skim design

Pentair Sta-Rite MasterTemp 300 Natural Gas Orifice (460753) powervac this Waterway gray skimmer lidFor compatible MasterTemp 300 heaters, this natural gas orifice helps control the amount of gas supplied to the burner system. It is a fuel specific part that should be matched to the heater model and service procedure. Replacing an incorrect, damaged, or missing orifice can help restore safe, consistent combustion when all other heater conditions are correct. Professional installation and verification are strongly recommended for any gas train