We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Black push-fit reducer fitting, 4mm to 8mm, pack of ten

Legris

Legris 3166 04 08 Plug-In Reducer 4mm x 8mm Pack of 10

SKU CH-HJ0M-K84JJ MPN 3166

Push-fit reducer connects 4 mm tube to 8 mm stem, rated 290 psi and 176 °F, pack of 10

  • Product typeDrain Components
  • Main materialHAWA
  • Product colorBlack
  • Connects 4 mm and 8 mm tubing instantly
  • Push-fit design needs no tools for assembly
  • Fibre-reinforced nylon handles 290 psi safely
  • Rated to 176 °F for demanding air lines
  • Pack of 10 reduces re-order frequency

4mm to 8mm Push-Fit Reducer

This Legris 3166 plug-in reducer joins a 4mm tube to an 8mm tube using push-to-connect ends. The fiberglass-reinforced nylon body handles air lines up to 290 psi and 176 degrees Fahrenheit. Each pack contains ten black fittings ready for installation. The 1 15/32 inch overall length keeps the joint compact in tight routing.

Suits pneumatic systems needing a step-up connection

Installers who require a threaded joint or a different tube material should choose another fitting. The push-to-connect design only accepts metric tubes at the stated diameters. Systems running fluids other than compressed air fall outside the rated application.

4mm to 8mm tube step-up

The single specification that decides fit is the combination of a 5/32 inch push-to-connect port and a 5/16 inch tube stem. If your circuit uses those two exact sizes this reducer completes the link; otherwise it will not seal. No thread sealant is included or required for the push-fit ends.

How it compares

Measured against everything we stock in Drain Stoppers, Strainers & Traps, at today’s prices. Recalculated every night.

Price $20.99
Cheaper than about 63% of the 4,240 comparable items (median $31.99).

Specifications

Product
Brand nameLegris
Model name3166 04 08
Product typeDrain Components
Product colorBlack
Size & build
Main materialHAWA

Questions about this item

What is included in the pack of 10 and do I need any extra parts to install them?

The pack contains ten push-fit reducer fittings made from fiberglass-reinforced nylon. No thread sealant is pre-applied, so you will need to supply a compatible sealant if your installation requires it.

Should I choose the 4 mm by 8 mm version or a different size for my airline?

This model reduces a 5/32 inch tube down to a 5/16 inch tube stem. Select it only when your system uses those two specific outer diameters; other sizes are separate part numbers.

How does the 290 psi pressure rating hold up when the fitting is in a live compressed-air line?

The fitting is rated for a maximum operating pressure of 290 psi at up to 176 °F. Stay within those limits and ensure the tubing is fully seated to maintain a leak-free connection.

More in Drain Stoppers, Strainers & Traps

Similar items