Orbit and LASCO PVC Hose Adapters: Sizes and Fit Compared
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Pick the adapter by the size of the pipe thread you are connecting to, not by the brand. For a 3/4 inch PVC slip pipe, the Orbit 3/4 inch slip by female hose thread fitting is the match. For a 1/2 inch male pipe thread, the LASCO 15-1631 is the PVC adapter that goes from 3/4 inch male hose thread to 1/2 inch male pipe thread. Larger 1 inch and 1.5 inch pipe threads need the Fitvell or Van Enterprises adapters further down. The Orbit product in these listings is a 3/4 inch part, so the 1/2 inch option here comes from LASCO.
At a glance: the 4 picks, by their own spec fields
| Pick | Thread size | Pieces | Flag |
|---|---|---|---|
| LASCO 15-1631 | 3/4″ male hose thread x 1/2″ male pipe thread | 1 | Listing weight reads 0.27 g — implausible for a solid fitting; male-to-male, needs a female pipe fitting on the other side |
| Orbit 53360 | 3/4″ slip x FHT | Title says 2-pack, unit count field says 20 | Description mentions brass or plastic, material field says PVC; thread type field says NPS — multiple conflicting fields, confirm thread and pack count before ordering |
| Fitvell zlw-pgf-2203810 | 1″ NPT male x 3/4″ GHT male | 2 | No weight, dimensions, or pressure rating given; both ends male — hose needs a female end |
| Van Enterprises | 1.5″ NPT male x 3/4″ GHT | 1 | 13.61 g, 2x2x2 in; sizing rule given — matches an outside diameter of 1.85″; no pressure rating stated |
Specs are from each product’s Amazon listing (full citations in this guide’s sources section). The Orbit listing has the most unresolved internal conflicts — confirm material, thread type, and actual pack count directly on the current listing before ordering.
How to pick a PVC hose adapter
Know which end is which
Every adapter in this guide bridges a garden hose thread and something else. Garden hose thread (GHT, also written FHT for female or MHT for male) is the standard 3/4 inch thread on a faucet or hose end. The other end is either a slip socket that is glued onto PVC pipe, or a pipe thread (NPT) that screws into a threaded fitting. The Orbit fitting has a slip end and a female hose thread. The LASCO has a male hose thread on one end and a male pipe thread on the other. The Fitvell and Van Enterprises parts are male pipe thread by male hose thread.
Match the pipe thread size exactly
A 1/2 inch pipe thread, a 3/4 inch pipe thread, and a 1 inch pipe thread are not interchangeable even though they all look similar. The Van Enterprises listing notes that its adapters are sold in 1/2, 3/4, 1, 1.25, and 1.5 inch sizes, so the listing you open must name the size you need. When in doubt, check the thread size on the part you are screwing into rather than guessing from the pipe diameter.
Sealing the threads
The Orbit listing says to use pipe thread tape on male pipe threads for a leak-free connection, and the slip end of a PVC fitting needs primer and solvent cement as well. A garden hose connection seals with a rubber washer instead, so the washer must sit flat in the female end. Our guide to connecting PVC pipe to a garden hose walks through the same two kinds of seal.
Our picks
LASCO 15-1631 PVC Hose Adapter, 3/4 Inch Male Hose Thread by 1/2 Inch Male Pipe Thread
- White PVC adapter, model 15-1631, with a 3/4 inch male hose thread on one end and a 1/2 inch male pipe thread on the other.
- Listing size is 1.06 by 1.06 by 1.76 inches, and a one year warranty is listed.
- Described as a hose to male pipe adapter for adapting garden hose thread to PVC pipe or pipe thread, and for drip or underground irrigation.
This is the pick when your target is a 1/2 inch threaded fitting. It is a single piece, so buy as many as you have connections. The limitation is that the listing weight reads 0.27 g, which is not plausible for a solid fitting, so the weight is unresolved. It is also a male-to-male design, so you need a female pipe thread or fitting on the pipe side.
Orbit 3/4 Inch Slip x FHT PVC Hose-to-Pipe Sprinkler Fitting, 2 Pack
- White PVC adapter from the brand Orbit, model 53360, in a 3/4 inch size.
- The description says it connects hose fittings to an irrigation system, or irrigation components to the end of a hose, and is compatible with fittings from Orbit, Hydro-Rain, and other major brands.
- The listing recommends pipe thread tape on male pipe threads.
This is the pick for sprinkler and drip irrigation work where 3/4 inch PVC pipe meets a hose. It is sold as a two-pack. There are listing conflicts to be aware of: the description mentions brass or plastic construction while the material field says PVC, the thread type field says NPS, and the unit count field says 20 even though the title says 2 pack. Confirm the thread and pack count on the current page before ordering.
Fitvell 2 Pack PVC Garden Hose Adapter, 1 Inch NPT Male x 3/4 Inch GHT Male
- Plastic (PVC) adapter, white, with a 1 inch NPT male thread and a 3/4 inch GHT male thread.
- Sold as a 2 piece set, model zlw-pgf-2203810.
- The listing says it is rust and corrosion resistant and is mainly used for sump pumps and pool pumps.
Choose this when the pipe or pump outlet has a 1 inch male pipe thread and you need a male garden hose thread to attach a hose. Because the listing mentions sump pumps and pool pumps, it fits pump-to-hose jobs. The limitation is that the listing gives no weight, dimensions, or pressure rating, and both ends are male, so the hose must have a female end.
Van Enterprises PVC Garden Hose Adapter, 1.5 Inch Male NPT x 3/4 Inch GHT
- Polyvinyl chloride adapter with a 1.5 inch NPT male thread and a 3/4 inch garden hose thread, sold as a single piece.
- Listing size is 2 by 2 by 2 inches, and it weighs 13.61 g.
- The description says it is for all pumps including sump pumps and pool pumps.
- It adds that the same adapter family is available in 1/2, 3/4, 1, 1.25, and 1.5 inch sizes, and says to buy this 1.5 inch version if the outside diameter is 1.85 inches.
This is the larger-thread pick for a pump outlet. The size guidance in the listing is useful because it ties the 1.5 inch NPT size to a measurable outside diameter of 1.85 inches, so you can check your fitting with a ruler. The limitation is the single-piece quantity, and the listing does not state a pressure rating.
Which one fits which job
- 1/2 inch male pipe thread to a hose: LASCO 15-1631.
- 3/4 inch PVC slip pipe to a hose fitting: Orbit 3/4 inch slip by FHT.
- 1 inch male pipe thread to a hose: Fitvell, in a two-pack.
- 1.5 inch male pipe thread, such as a pump outlet: Van Enterprises, with a stated 1.85 inch outside diameter match.
Our guide to connecting a hose to PVC pipe covers more of the hose-to-pipe options, and the drip irrigation adapter guide is the place to look if your 1/2 inch connection is a drip line rather than a rigid pipe thread.
Male and female ends
Before you order, say out loud which end each side of your connection has. A faucet or a hose end with a male hose thread needs an adapter with a female hose thread, such as the Orbit fitting. A pipe with a female pipe thread needs an adapter with a male pipe thread, such as the LASCO, Fitvell, or Van Enterprises parts. If you find that you have two male ends or two female ends facing each other, you need a coupler or a second adapter, because none of the products here converts one gender to the other on the hose side. Getting this right on paper takes a minute and avoids a return.
Installation notes
For a threaded end, wrap pipe thread tape in the direction of tightening, and tighten by hand plus a part turn. PVC threads are easy to crack, so do not over-tighten. For a slip end, follow the primer and solvent cement directions on the can and let the joint cure before pressurizing it.
Make sure the rubber washer is in place on the hose side. A hose connection seals on that washer, not on the threads, so a missing washer is the most common cause of a drip at a new adapter.
Support the hose near the fitting. A heavy, full hose can pull on a male pipe thread and loosen it over time, and a hanger or a short stake near the connection prevents this.
Frequently asked questions
Is there an Orbit adapter in 1/2 inch?
The Orbit product in these listings is a 3/4 inch slip by female hose thread fitting. The 1/2 inch adapter here is the LASCO 15-1631, which has a 1/2 inch male pipe thread.
What does slip by FHT mean?
A slip end is a smooth socket that is glued to PVC pipe with primer and solvent cement. FHT stands for female hose thread, the thread on a standard hose end.
Do these adapters come with washers or a warranty?
The LASCO listing states a one year warranty. The other listings do not state a warranty or a washer in the information we have, so confirm that on the current page.
Which adapter suits a sump pump or pool pump?
The Fitvell and Van Enterprises listings both mention sump pumps and pool pumps. Choose by thread size: Fitvell for a 1 inch male pipe thread and Van Enterprises for a 1.5 inch male pipe thread.
Bottom line
Choose the LASCO adapter for a 1/2 inch male pipe thread and the Orbit fitting for 3/4 inch slip pipe. If your pump or pipe is bigger, move to the Fitvell for 1 inch or the Van Enterprises adapter for 1.5 inch. Whatever you choose, match the pipe thread size first and the brand second.
