3/4 GHT Female to 1/2 NPT Male: Adapter Guide
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If you need to connect a standard garden hose to a pipe or faucet fitting with 1/2 inch NPT male threads, you need a GHT to NPT adapter. The usual version has 3/4 inch garden hose thread (GHT) female on one end and 1/2 inch national pipe thread (NPT) male on the other. The two thread standards look alike but do not mate, and the size printed on a package does not always tell you which standard it uses. This guide explains the thread basics, lists four Amazon listings that match this size, and shows what to check before you order, because several listings contradict themselves.
Quick answer
Buy an adapter marked 3/4 inch GHT female by 1/2 inch NPT male, made of brass, and confirm the thread on the piece before you connect it to anything. Four listings match this size: a Kbrotech two-piece set, a Sanpaint adapter, a YOUHO adapter and a SARANICE two-pack. The SARANICE listing is the most consistent of the four, since its title, style line and bullets all describe 3/4 inch GHT female to 1/2 inch NPT male. The Sanpaint and YOUHO listings contain wording that conflicts with their titles, so read those notes before you order.
What GHT and NPT mean
Garden hose thread is a straight, non-tapered thread. The official designation in the US and Canada is NH, with 3/4 inch hose threads running at 11.5 threads per inch, according to the Wikipedia entry on garden hoses. The thread does not create the seal; a rubber or plastic washer does that job, which is why the included washers matter. NPT is a tapered pipe thread, and it seals by wedging the tapered threads together, which is why plumbers usually add PTFE tape or pipe dope. The 1/2 inch NPT thread used in most household pipe fittings has about 14 threads per inch.
The practical result is that a 3/4 inch GHT hose end will not screw into a 3/4 inch NPT fitting, and forcing it can damage both threads. An adapter converts one standard to the other. For a related guide on fitting types, see our 2 inch PVC to garden hose adapter guide, and for the NPT side of a different size, see the Everbilt 1 1/4 inch polypropylene FIP adapter post.
Four listings that match 3/4 GHT female to 1/2 NPT male
Each card below uses the listing data we read. The specs come from the Amazon listing, checked 2026-10-18, except where a card says otherwise. Where a listing does not state a fact, we say so.
1. SARANICE 3/4 GHT Female to 1/2 NPT Male Connector, Brass, 2 Pack
Specs (from the listing, checked 2026-10-18): 3/4 inch GHT female on one end and 1/2 inch NPT male on the other; brass construction; O-ring seal; sold as a 2 pack. The listing does not state dimensions or a pressure rating.
Pros: The title, bullets and summary all describe the same 3/4 inch GHT female to 1/2 inch NPT male connection. The listing names an O-ring seal and says the brass resists rust. The two-pack gives you a spare.
Cons: The listing does not give a pressure rating or dimensions. Its own note says to check the size before buying.
Best for: buyers who want a 2 pack with an O-ring seal and a listing whose size text is consistent.
Skip if: you need a stated pressure rating before you buy.
View on Amazon (affiliate link)
2. Kbrotech Brass Garden Hose Adapter, 3/4 GHT Female x 1/2 NPT Male, 2 Pieces
Specs (from the listing scan dated 2026-10-11, reused): 3/4 inch GHT female x 1/2 inch NPT male; brass; item weight 1.6 ounces; model number 8921; two extra rubber washers listed in the bullets. The listing does not state dimensions.
Pros: The bullets describe the same 3/4 inch GHT female to 1/2 inch NPT male connection. The listing explicitly notes that the NPT side is 1/2 inch national pipe thread, not garden hose thread, which helps you avoid a mismatch.
Cons: The title says 2 pieces, but the spec table lists 4 pieces in 2 packs. Check the count on the listing before you order.
Best for: buyers who want a brass adapter with extra washers, and who will confirm the piece count.
Skip if: you need a single clearly counted piece, or a stated pressure rating.
View on Amazon (affiliate link)
3. YOUHO Garden Hose Adapter Brass, 3/4 GHT Female x 1/2 NPT Male
Specs (from the listing, checked 2026-10-18): brass construction; the listing says the solid brass handles up to 600 PSI; 1/2 inch NPT male to 3/4 inch GHT female in the listing bullets; sold in several size variants, including 1 piece and 2 pieces. The listing does not state dimensions.
Pros: It is the only one of the four that states a pressure figure in its bullets (600 PSI). The bullets say it converts incompatible thread types without extra tools, and the threads are described as precision-machined.
Cons: The product description calls the fitting a “double female swivel” with 3/4 inch GHT female by 1/2 inch NPT, which does not match the title’s NPT male. The variant list is long, so choose the 1/2 NPT(M) to 3/4 GHT(F) variant carefully.
Best for: buyers who want a stated pressure figure and are comfortable confirming the variant.
Skip if: the conflicting description bothers you, or you cannot confirm the variant before the order.
View on Amazon (affiliate link)
4. Sanpaint Garden Hose Adapter, 3/4 GHT Female x 1/2 NPT Male Connector
Specs (from the listing, checked 2026-10-18): the selected style is 3/4 inch GHT female x 1/2 inch NPT male; brass construction; included rubber washers create a watertight seal; precision-cut threads. Dimensions and a pressure rating are not stated in the listing text we read.
Pros: The title and style line match the keyword. The bullets describe a solid brass build and included washers.
Cons: The listing summary says the fitting connects a female 3/4 inch GHT on one end and a female 3/4 inch NPT on the other, and the package line describes a 3/4 inch GHT male x 3/4 inch NPT male connector. Both conflict with the title. We cannot tell from the listing text which thread is correct.
Best for: buyers who will check the thread markings on arrival and are willing to return the item if it does not match.
Skip if: you need a listing where the NPT size is stated consistently before you order.
View on Amazon (affiliate link)
Listing conflicts to check before you buy
Three of the four listings contain at least one line that does not match the title. These are not errors we can confirm; they are conflicts in the listing text. Treat the title and the style you select as the first check, then compare the bullets. If the bullets say something different, ask the seller before you order, or pick a listing where the text agrees.
- Sanpaint: the summary describes 3/4 inch NPT on the other end, and the package line describes 3/4 inch NPT male, both of which conflict with the title’s 1/2 inch NPT male.
- YOUHO: the description says “double female swivel”, which conflicts with the title’s NPT male.
- Kbrotech: the title says 2 pieces, the spec table says 4 pieces in 2 packs.
Worked example: a quick thread check
Worked example, our arithmetic (not from any listing): thread pitch is the distance from one thread crest to the next. Pitch equals 1 inch divided by the threads per inch. A 3/4 inch GHT thread at 11.5 threads per inch has a pitch of 1 / 11.5, about 0.087 inch. A 1/2 inch NPT thread at 14 threads per inch has a pitch of 1 / 14, about 0.071 inch. Those are different enough that you can tell them apart by counting threads over about one inch with a ruler. Count the threads: GHT shows roughly 11 to 12 in one inch, and 1/2 inch NPT shows about 14.
The count is a check, not a guarantee. If the count does not match either number, do not force the connection.
How to choose and connect
Start with the thread on the faucet or pipe you are connecting to. If it is a female pipe fitting, you need a male NPT end on the adapter, which matches the 1/2 inch NPT male side of these listings. The GHT female end takes a standard male hose end. Use a washer or O-ring as the listing specifies, and add PTFE tape to the NPT threads if the pipe connection calls for it. We are not giving installation steps beyond the listing; follow the instructions for your faucet or hose system.
If the fitting is for a different size, a different thread, or a non-garden use such as a pressure line, a different guide applies. Our garden hose connector with a shut-off valve guide covers a different connection problem.
Frequently asked questions
Is 3/4 GHT the same as 3/4 NPT?
No. GHT is a straight garden hose thread, and NPT is a tapered pipe thread. A 3/4 inch GHT hose end does not mate with a 3/4 inch NPT fitting, so use an adapter.
Which end of the adapter is which?
The 3/4 inch GHT side on these listings is female, so it takes a male hose end. The 1/2 inch NPT side is male, so it screws into a female pipe fitting.
Does any of the four listings state a pressure rating?
Yes, the YOUHO listing states that its solid brass handles up to 600 PSI. The other three listings do not state a pressure rating in the text we read.
Do I need tape on the NPT threads?
The listings describe washers or O-rings for sealing. NPT threads are commonly sealed with PTFE tape or pipe dope, which is standard plumbing practice. Follow the instructions for your system.
Verdict
For a 3/4 inch GHT female to 1/2 inch NPT male adapter, pick the listing whose title, style line and bullets agree. Based on the text we read, that is the SARANICE two-pack. If you need a stated pressure figure, look at YOUHO, but confirm the variant first. The thread check above takes about a minute and prevents most mismatches.
Source for the thread background: the Wikipedia entry on garden hoses, which we opened to confirm the GHT thread standard and the 11.5 threads per inch figure.
