It's a set of four valves, two on each of the hot and cold water pipes below a tankless water heater, that enables you or a service person to flush out any mineral scale buildup inside. Manufacturers refer to it as an "isolator valve kit" or "service valve kit," but plumbers frequently say "flush kit." The top two valves open the pipes to threaded front hose connections, while the bottom two valves isolate it from the home's plumbing system so that vinegar can be circulated through the water heater to remove scale accumulation. A service valve kit is necessary since you cannot flush the system without one and must contact the manufacturer for warranty service if your water heater develops a problem after several years.
Key Features:
- Except for 1993 9.9 and 15 HP engines, it fits all Johnson/Evinrude engines with a priming valve.
- Johnson/Evinrude Outboard 175158+437228 interchangeable
- includes the 18-0871 Service Value with O-ring and the 18-0993 Cover and Gasket Assembly.
- Each portion is equivalent to the original one it replaces.
- Before making a purchase, verify the part numbers to guarantee a good fit.
Product Specifications:
- SKU: 18-7044-1
- UPC: 808282378271
- Weight: 0.06 LBS
- Unit Of Measure: EA
- Manufacturer Part Number (MPN): 18-7044
- Quantity: 1
