RV Faucet Adapter 1/2" Male to 3/8" Male Brass Faucet Supply Line Adapter for RV Kitchen Plumbing Water Hose Pipe Connector (Pack of 4)

Swap a tap in a caravan or a kitchen and the tails on the new one rarely land where the old shut-off valve expects them. One end is the wrong size, the flexible hose will not reach, and the job stops. A short brass adapter between the valve and the supply line closes that gap without replacing either.

The measurements are the identification

The supplier gives outside diameters rather than a thread standard, which makes them the numbers to match on. The 3/8 inch male end is published as 0.52 inch outside diameter, or 13.2 mm, with an explicit warning that it is NOT for 0.61 inch. The 1/2 inch male end is published as 0.75 inch outside diameter, or 19.1 mm. Both figures appear here in the supplier's own units, with its own metric equivalents alongside, unaltered. The stated job is connecting a 3/8 inch line to a 1/2 inch angle stop, which the supplier describes as solving the mismatch between older shut-off valves and modern supply lines.

Nickel over brass, and one temperature figure

The body is brass with a nickel coating, described as anti-corrosion and rust-proof. Nickel plating gives a harder surface than bare brass, which is what keeps a threaded fitting looking presentable where it is on show under a sink or beside a caravan tap. The one performance figure published is temperature: the supplier states it withstands up to 100°C, printed alongside 212°F, which is why the same fitting is offered for hot and cold lines alike. No pressure rating is given anywhere.

Check the thread standard before you order

This is the important part for an Australian buyer and it needs stating plainly. The supplier publishes outside diameters and nothing else — no thread standard is named anywhere in its data. Plumbing threads in Australia are generally BSP, while fittings written up in inch sizes for the North American market usually are not, and the two do not interchange even when a nominal size looks the same. Take the outside diameter of the fitting you intend to join to and compare it against 0.52 inch and 0.75 inch before ordering. Where any doubt remains, a plumber will settle it in a minute.

Key features

• Four in the pack: the quantity given in the product title.
• Published outside diameters: 0.52 inch (13.2 mm) and 0.75 inch (19.1 mm), the figures to match on.
• Brass with nickel coating: described by the supplier as anti-corrosion and rust-proof.
• Rated to 100°C: the supplier's figure, which is why it is offered for hot as well as cold.
• Male on both ends: for joining a supply line to an angle stop valve.

Specifications

• Pack quantity: 4, per the product title
• 3/8 inch male outside diameter: 0.52 inch (13.2 mm) — the supplier states it is NOT for 0.61 inch
• 1/2 inch male outside diameter: 0.75 inch (19.1 mm)
• Material: brass with nickel coating
• Temperature: withstands up to 100°C / 212°F, as published
• Stated uses: kitchen, bathroom sink, dishwasher, hot water heater
• Thread standard (BSP, NPT or other): not named anywhere in the data
• Pressure rating: not published
• Overall length and hex size: not published
• Drinking water certification: none named — see below

Before you fit these

• The supplier's data names no drinking water certification whatsoever. Nothing here states or implies that these fittings are lead-free, potable-water rated, WaterMark certified, AS/NZS approved or NSF listed, because the supplier claims none of those things. Australian plumbing products used on drinking water require the appropriate certification, and if this fitting is intended for a potable supply that certification has to be established before it goes in.
• No thread standard is published. Australian plumbing runs on BSP threads; a fitting written up in inch sizes for another market may not. Verify the match on the actual fitting rather than on the nominal size in the title.
• The product title calls this an RV faucet adapter, while the supplier's own applications are ordinary household ones — kitchen, bathroom sink, dishwasher and hot water heater. No caravan or motorhome fitting is specifically named in the data.
• No pressure rating is published. On a fitting that will sit permanently on a pressurised water line, that gap is worth taking up with the supplier.
• Water damage from a slow weep behind a cabinet costs far more than the fitting. Turn the supply off, check the joint under pressure before closing anything up, and look at it again a day later.

Four brass adapters with both diameters published — and the certification and thread questions left where a buyer can see them.

Returns, Refunds, and Replacements

Products that are received faulty, damaged, or not as described are eligible for a return, refund, or replacement in accordance with the Australian Consumer Law (ACL). We are committed to ensuring all products meet the standards of quality and reliability expected by our customers. However, please note that we do not accept returns or provide refunds for change of mind. We encourage you to carefully consider your purchase to ensure it meets your needs and expectations.

Delivery Timeframe

Please note that we cannot guarantee the exact date of arrival, and the delivery timeframes (excluding weekends and public holidays) are as follows:

For customers in Victoria, approximately 7-10 working days;
For customers in NSW, SA, ACT, and QLD, approximately 9-12 working days;
For customers in WA, NT, and TAS, approximately 9-12 working days.