Mason Lite Combustion Air Kit, 4", for MFPST43 & Linear Units | MFPST-AK-M Spa Chemicals Disconnect the power supply before

Disconnect the power supply before removing the existing cable

It's often integrated into skimmer assemblies to handle pressure variations

minimalist lines and a precision laser-cut pattern

whether you're roasting marshmallows or keeping warm on chilly nights

Their JetAir systems include testing and service tools for accurate installation

Mason Lite Combustion Air Kit, 4", for MFPST43 & Linear Units | MFPST-AK-M Spa Chemicals Disconnect the power supply beforeMason Lite MFPST AK M 4 Inch Combustion Air Kit For MFPST43 and Linear Units The Mason Lite MFPST AK M is a 4 inch combustion air kit for MFPST43 and linear Mason Lite units. The kit includes a closable firebox inlet, 3 feet of flexible vent conduit, and a plastic outdoor hood. The firebox inlet fits the pre cut hole in the firebox. If firebrick panels are being used, a hole must be cut to accommodate the air kit. 4 inch combustion air kit For MFPST43