Connection type
Hose thread on drip parts: FHT, MHT and the adapters between
Drip head parts use 3/4 in hose thread: DIG's D45 and D57A are FHT x MHT. Raindrip says to match hose thread to hose thread. Adapters to pipe thread.
Also listed as garden hose thread, GHT, FHT, MHT
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Short answer
Hose thread is the thread on outdoor faucets and hoses; ASME B1.20.7 covers hose coupling threads from 1/2 to 4 in. On the drip head parts in our sources it is 3/4 in: DIG's D45 backflow preventer and D57A filter are 3/4 in FHT x MHT. Raindrip says to match hose thread to hose thread and pipe thread to pipe thread; DIG's D49 and 50007 bridge the two. See FHT vs MHT vs FPT vs MPT.
What fitsAll 2 items that fit
- 25 psi hose-thread regulatorRain Bird HT07525PS 3/4 in FHT x MHT 25 psi pressure regulatorCheck price on Amazon
Key facts
- How it grips
- Screw threads of hose couplings and fittings, which ASME B1.20.7 covers in sizes from 1/2 to 4 in[1]
- Dimension that decides fit
- Thread size and gender: female hose thread (FHT) or male hose thread (MHT); 3/4 in on the DIG and Mister Landscaper head parts in our sources[2][3]
- Ranges makers state
- DIG D45 backflow preventer and D57A screen filter (155 mesh): 3/4 in FHT x 3/4 in MHT. DIG D49 nipple: 3/4 in MHT x MPT. DIG 50007 swivel: 3/4 in FHT x MNPT. Mister Landscaper MLD-25PR and MLA-58 regulators: 3/4 in hose threads[2][4][5][6][3]DIG does not describe the D57A as a swivel.
- Maker pressure ratings
- DIG D45: up to 100 PSI and 8 GPM. DIG D49: up to 80 PSI. DIG 50007: up to 100 PSI[2][5][6]
- Reuse and removal
- Rain Bird says to unscrew filters, pressure regulators and backflow preventers before winter and store them indoors[7]
- Meets directly
- Hose thread to hose thread (Raindrip): an FHT part onto an MHT part of the same size[8]
- Needs an adapter to meet
- Pipe thread: DIG D49 (MHT x MPT) or DIG 50007 (FHT x MNPT). Tubing: DIG 15-005 (.700 in OD x 3/4 in FHT)[5][6][9]
- Common mistakes makers name
- Raindrip: mismatched or cross-threaded connections are the main cause of leaks. In Raindrip's own faucet assembly, the filter washer goes inside the faucet connection and the flow control inside the swivel adapter, black rubber washer facing up[8]Raindrip's washer placement applies to its own parts.
- Not confirmed
- Not confirmedASME's page never says 'garden hose thread' or 'GHT'; that name is common usage. No source in our register gives a universal faucet head order. Whether a backflow device meets local rules is for your water utility.
Watch out for
- Hose thread and pipe thread do not mate directly: Raindrip says to match hose to hose and pipe to pipe.
- DIG says its D45 backflow preventer cannot be used under continuous pressure.
- 'Garden hose thread' is common usage; the ASME standard's page does not use that name.
- Mister Landscaper's head order is for its own system; makers differ.
What fits
Product details below are the seller's own description unless a source is shown. Pick the variant named for each item.
25 psi hose-thread regulator
Rain Bird HT07525PS 3/4 in FHT x MHT 25 psi pressure regulatorChoose the HT07525PS (3/4 in FHT x MHT, 25 psi).
Rain Bird lists a 3/4 in female hose thread inlet and male hose thread outlet.
Faucet adapter with FHT inlet
Orbit 67738 3‑in‑1 faucet adapter (3/4 in FHT, 150 mesh filter, 20 psi regulator, 1/2 in Drip-Lock)Choose the 67738 3-in-1 adapter.
Orbit lists a 3/4 in FHT inlet; the outlet is a Drip-Lock push connection, not a thread.
Questions
What is the difference between FHT and MHT?
FHT is female (inside) hose thread and MHT is male (outside) hose thread. DIG's D45 backflow preventer, for example, has a 3/4 in FHT inlet and a 3/4 in MHT outlet.[2]
Can I screw a hose-thread part onto pipe thread?
Raindrip says to match hose thread to hose thread and pipe thread to pipe thread. DIG lists adapters between them: D49 (MHT x MPT) and 50007 (FHT x MNPT).[8][5][6]
What standard covers hose threads?
ASME B1.20.7 covers screw threads for hose couplings in sizes from 1/2 to 4 in. Its page does not use the name 'garden hose thread'.[1]