Constructed for longevity in demanding environments

reaching optimal temperature within 17 seconds for consistent light-offs and reduced ignition delays

For technicians performing heat pump troubleshooting

The inclusion of an internal set screw and a protective plastic cover with a grommet facilitates professional-grade wire management and protection against localized debris

Chronic thermal stress can eventually weaken the internal bimetal disc

Watts 0556004 Valve Els PW 17895 Constructed for longevity in demandingThe Watts 0556004 (Model LLL100XL 150) is a specialized 3 4" Temperature and Pressure Relief Valve designed specifically for modern high efficiency water heaters and storage tanks. For technicians dealing with the "thick insulation" challenge, this model features an extra extended shank that accommodates up to 3 inches of tank insulation, effectively eliminating the need for additional extension nipples that can compromise seal integrity. This lead