Hayward H-Series Pilot Tube (HAXTRK1930) marathonelectric A cartridge like this is

A cartridge like this is useful because it provides the filtering surface that helps capture suspended debris and supports cleaner circulating water

and this G & P Tools version is designed in a 3/16 inch size using the 99-366-1040 reference

Designed for compatible 180

Supports cleaner installation and protection logic

Titanium construction can be especially appealing in demanding environments where durability matters

Hayward H-Series Pilot Tube (HAXTRK1930) marathonelectric A cartridge like this isThis pilot tube is a replacement part for compatible Hayward H Series heater assemblies. In gas heater systems, the pilot tube helps route gas to the pilot area and must remain in good condition for safe, dependable ignition service. It is commonly replaced during pilot, burner, or ignition related repairs. For compatible Hayward H Series gas heaters Routes gas to the pilot assembly area Useful during pilot or ignition system service Helps maintain