Breco 2DSF2-BI, 1/4" ISO-B Hydraulic Coupler x 1/4" Female NPT, ISO-B Series, Carpet Cleaning, Brass

Product Details

The most widely used industrial hydraulic quick coupling, compatible with ISO 7241-1 Series B. The Breco 2DSF2-BI is a brass 1/4" coupler in the DS Series, which interchanges with Foster FHK and other ISO-B couplings on hydraulic tools, machinery, and equipment. Two-way shut-off, rated to 2700 PSI. Built for carpet-cleaning and truck-mount extractor service. (Also known as the DS Series.)

Why this coupler

• ISO-B interchange — couples with any ISO 7241-1 Series B half of the same body size, the most common hydraulic standard.
• Two-way shut-off — both halves seal on disconnect, preventing fluid loss and air inclusion.
• Carpet cleaning brass — built for truck-mount extractor and carpet-cleaning solution lines.
• Brass body — rated to 2700 PSI with a 4:1 safety factor per ANSI/B93.2.

Frequently asked questions

Are these ISO-B couplers?
Yes — the Breco DS Series is compatible with ISO 7241-1, Series B, the most widely used industrial hydraulic interchange. It mates with Foster FHK and other ISO-B halves of the same body size.

What plug does it take?
Any 1/4 plug on the same ISO-B interface in matching brass. The matching Foster plug is K2B.

Can I connect it under pressure?
No. ISO-B couplings connect and disconnect at zero pressure. Relieve system pressure first.

What is the -BI variant?
The -BI brass parts are built for carpet-cleaning and truck-mount extractor service. They are still standard ISO-B couplers and mate with any ISO-B half of the same size.

Why buy from hpcouplers: Breco quality, responsive US-based support, accurate specs, fast shipping.

ISO-B Series (ISO 7241-1 Series B / FHK) — Complete Series Chart

The size you are viewing is shown first, with the rest of the series below. Base couplings appear before ball lock and seal options. Dust caps and plugs fit by body size and are labeled by which half they protect. Click any part number to open that product.