Sale! Supco SHL523 Plenum Limit Thermostat L130-20$13.95 Original price was: $13.95.$4.19Current price is: $4.19. - Supco SHL523 Plenum Limit Thermostat L130-20 quantity + Add to cart SKU: SHL523 Category: HVAC&R Tag: Supco Description Description Supco part number SHL523. Gas Furnace Plenum Limit Thermostat. Specifications: Open 130 F Close 110 F Board Width: 1.88 inches Board Height: 2.8 inches Insertion Length: 7 inches Replacement For Brands and Numbers: Lennox: 47-21711-08 Related products Sale! Supco DE3155 for 5304523155 Frigidaire Clothes Dryer Drum Support Roller Wheel $19.78 Original price was: $19.78.$5.93Current price is: $5.93. Add to cart Sale! TD73 SUPCO Delay On Break Time Delays Timer $6.53 Original price was: $6.53.$1.96Current price is: $1.96. Add to cart Sale! CSLD14S4 1/2″ Sweat Supco Compact Suction Line Burn Out Filter Drier HVAC $22.10 Original price was: $22.10.$6.63Current price is: $6.63. Add to cart Sale! Supco T1036 Insulated Ring Terminal Connector Pack of 15 for 12-10 Wire #8 Stud $3.27 Original price was: $3.27.$0.98Current price is: $0.98. Add to cart