Honeywell L8148A1017/U Aquastat High Limit 140-240 Degrees Fahrenheit 8F Fixed Horizontal The L8148 Aquastat Relays are immersion type hydronic controllers that combine high limit protection with switching relay control of burner and circulator motors. Immersion type controllers that combine high limit protection with switching relay control of burner and circulator motors High limit opens burner circuit only Select models include transformer and accessory terminals for adding a remote low limit controller TRADELINE models include well adapter tube of heat conductive compounds and range stops 0 to 95% RH non-condensing If you are not satisfied for any reason products may be returned within 30 days of shipment for a credit or exchange (provided the product is undamaged), except where noted, NOT RETURNABLE. Return documentation should clearly specify credit or exchange. Returned items must be in the original packaging. All returns must include a return authorization (RGA) number that can be obtained by contacting our Customer Service Department. Original shipping cost deducted. Reference to brand names and numbers are for reference only, and not meant to imply that they are made by that manufacturer (OEM). Sometimes images shown are generic and not meant to infer that they are actual. The parts will work as intended and are high quality and precision tested. Track Page Views With Auctiva's FREE Counter