Blue Lagoon -3-way coupling black (2pcs.) - E800940

E800940 – Set (2 pcs) 3-way coupling, black

Mount your Blue Lagoon reactor cleanly and leak-tight with this original pair of 3-way couplings in black. Designed for inline installation, these unions secure the housing to your return line and make seasonal servicing fast and tidy. Available from PoolParthub.com.

Compatibility

Fits Blue Lagoon systems that specify the black 3-way coupling set, including the ProfiHeater range (1/2/3 kW) and selected Blue Lagoon UV-C reactors. Check your manual or parts list for code E800940.

What’s included

• 2 × 3-way couplings, black (ref. E800940)

Recommended accompanying parts

• O-rings for 3-way connections: E800941
• Mounting bracket 75 mm: B290006 (model-dependent)
• End-cap nut / seals: see your unit’s spare-parts list

Installation & tips

• Dry-fit first to confirm orientation and clearance.
• Use fresh O-rings (light silicone grease) and tighten both nuts evenly.
• After curing any glued pipework, pressurise and leak-test before use.

Specifications

• Reference: E800940
• Set: 2 couplings (inlet and outlet)
• Colour: Black
• Function: 3-way inline unions for Blue Lagoon housings
• Material: Pool-grade ABS/PVC (union design)

Good to know

Select the correct coupling set for your plumbing standard. Some models use blue 63 mm unions or UK/US 60½ mm versions—match the code in your device documentation.