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

Legris

Legris 3175 12 17 Male Connector 12mm 3/8In PK10

SKU CH-HX3B-Y7WVQ MPN 3175

Pack of ten push-fit brass connectors join 12 mm tube to 3/8 in MBSPT threads, rated 290 psi and 175 °F

  • TypeDrain Components
  • MaterialHAWA
  • ColorBlack
  • Push-to-connect design speeds installation with 12 mm tube and 3/8 in BSPT ends
  • Brass C36000 body handles 290 psi and 175 °F for reliable vacuum service
  • Pre-applied thread sealant eliminates extra sealing steps on the 3/8 in connection
  • Compact 24 mm overall length fits tight plumbing spaces
  • Pack of 10 connectors covers multiple fitting points in one order

Push-fit brass adapter

This pack contains ten push-fit brass adapters that join 12 mm tube to a 3/8 inch male BSPT thread. The fittings are made from C36000 brass and carry a silver finish with pre-applied thread sealant.

Vacuum-line installers and general plumbing

The connectors suit technicians assembling vacuum lines or compressed-air circuits up to 290 psi and 175 Degrees F. They are not intended for installers who need a different tube diameter, a different thread standard or a fitting without pre-applied sealant.

12 mm tube to 3/8 inch MBSPT

The decisive specification is the combination of a 12 mm push-to-connect port and a 3/8 inch MBSPT thread, which determines whether the adapter matches the existing tubing and port in the system.

Highlights

  • Push-to-connect design speeds installation with 12 mm tube and 3/8 in BSPT ends
  • Brass C36000 body handles 290 psi and 175 °F for reliable vacuum service
  • Pre-applied thread sealant eliminates extra sealing steps on the 3/8 in connection
  • Compact 24 mm overall length fits tight plumbing spaces
  • Pack of 10 connectors covers multiple fitting points in one order

Specifications

TypeDrain Components
MaterialHAWA
ColorBlack
BrandLegris
Model3175 12 17

Questions about this item

Should I choose the 12 mm tube or 3/8 in pipe version of this Legris 3175 connector?

This single fitting combines both: Side A accepts 12 mm push-to-connect tube and Side B is a 3/8 in MBSPT male thread, so you do not pick one or the other.

What does the 290 psi rating mean when the connector is installed in a vacuum line?

The 290 psi maximum operating pressure is the upper limit for positive pressure; in vacuum use the same fitting handles full vacuum without leaking.

How does the MBSPT thread on Side B affect the seal compared with a parallel thread?

The 3/8 in MBSPT male thread is tapered, so it seals on the flanks when tightened, and the pre-applied sealant ensures a leak-free joint without extra tape.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.