What it delivers
The Libra Supply LS-C5451LF 3/4" Tankless Isolation Valve Kit is a pair of tankless service valves for flushing and isolating the heater; its listing says it fits all Tankless Water Heater with 3/4 inch MPT Outlet.
Service valves let you shut off the heater and open hose ports on the hot and cold lines, so a flush takes minutes instead of cutting pipes.
Before ordering, check the heater's fitting size and whether you want threaded, sweat or push-fit connections; the hot-side valve usually takes the pressure relief valve.
From the listing: connections: 0.75 in; material: Brass; model: LS-C5451LF; fits: all Tankless Water Heater with 3/4 inch MPT Outlet.
Right unit for this house?
Install it when
- New tankless installs
- Owners who flush their own heater
Look at another unit when
- Heaters whose manual calls for a different method
Strengths and trade-offs
Strengths
- Isolation valve kit
- Names all Tankless Water Heater with 3/4 inch
Trade-offs
- Check the connection size first
Install limits
- Figures are the maker's or seller's own. Flow at a rise is our estimate from the input; gas, venting and electrical work needs a licensed professional.
Rated performance
Every figure below comes from the source shown in brackets. Where the maker doesn't state something, we say so instead of estimating.
| Model number | LS-C5451LF | Retailer |
|---|---|---|
| Material | Brass | Retailer |
| Connections | 0.75 in | Retailer |
| Fits | all Tankless Water Heater with 3/4 inch MPT Outlet | Retailer |
Rival units at this flow
More descaling and maintenance kits rated for similar demand
Final verdict
A solid isolation valve kit for new tankless installs.
Buy this unit
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