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Pair of brass PEX-to-manifold connectors, 5/8 inch, for M-8100 system

Legend Valve

Legend Valve 810-144EP 5/8" M-8100 manifold tube connector

SKU CH-J3ND-AR21K

Connects 5/8" PEX tubing to M-8100 EP manifolds in hydronic heating systems

  • Connects 5/8 PEX tubing to EP manifold
  • Compatible with M-8100 manifold systems
  • Supplied as a convenient pair of connectors
  • Legend Valve brand ensures reliable quality
  • New condition guarantees unused factory-fresh components

Legend Valve 810-144EP manifold connector

The Legend Valve 810-144EP is a 5/8 inch manifold tube connector designed for the M-8100 system. It connects PEX tubing to an EP manifold in hydronic heating installations. Supplied as a pair, it suits plumbers and heating engineers fitting or servicing radiant floor or panel circuits. The component is new and ships directly from the manufacturer.

Check tubing and manifold compatibility

Verify that your existing circuit uses 5/8 inch PEX tubing and an M-8100 manifold with EP connection ports. Confirm the manifold port count matches the pair quantity before ordering. Ensure the system pressure and temperature ratings align with the connector specifications. Note the California Proposition 65 warning regarding chemicals known to cause cancer and birth defects or other reproductive harm.

Replaces worn or mismatched PEX-to-manifold fittings

This pair replaces leaking, corroded or incorrectly sized connectors on an M-8100 manifold. The upgrade is worth it when a pressure test shows joint failure or when reconfiguring a zone requires a secure EP manifold interface. It restores circuit integrity without replacing the entire manifold assembly. Orders of 75 dollars or more qualify for free shipping from the manufacturer.

How it compares

Measured against everything we stock in Radiator Fans & Boiler Parts, at today’s prices. Recalculated every night.

Price $11.99
Cheaper than about 87% of the 95 comparable items (median $25.99).

Specifications

Product
Brand nameLEGEND VALVE

Questions about this item

What comes in the 810-144EP package and is anything else required?

The box contains a pair of 5/8" PEX to EP manifold connectors for the M-8100 system; PEX tubing and manifold are purchased separately.

How do I choose between the listed versions or capacities for this connector?

The 810-144EP is a single 5/8" size for M-8100 manifolds; select it when your tubing and manifold match that specification.

What does the 5/8" headline figure mean once the connector is installed in a real system?

It indicates the connector joins 5/8" PEX tubing to an EP manifold in the M-8100 series, creating a leak-tight joint for hydronic heating loops.

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