| Item | Detail |
|---|---|
| The real requirement | Low flow from a pump and a finite tank, a stop button to pause between rinses, low weight, and a mount that survives vibration |
| Catalog fit | Compact handhelds with a stop or pause button: ZH2981, ZH2257, ZH2256C, ZH2256-2, ZH2985 and similar models |
| Flow | Water-saving specifications measured roughly 50-70% below comparable non-saving types in factory tests at 0.3MPa; state the target in gpm or L/min |
| Weight and material | Injection-molded ABS bodies, so a hand shower stays light on a thin wall and does not corrode in a damp locker |
| Mounting | Suction cup and adhesive holders (ZHFS7718, ZHFS7720) for thin or non-drillable walls; wall brackets where a stud is available |
| Threads | G1/2 (BSPP) by default; North American RV plumbing generally uses 1/2 inch NPT, handled at the hose or with an adapter |
| Sourcing | Existing molds; MOQ from about 2,000 units; every unit water tested about 10 to 15 seconds before packing |
What an RV shower actually has to do
A recreational vehicle, caravan or boat shower runs from a pump and a tank, not from mains pressure, and the tank is the constraint. The specification that follows is consistent: low flow so the pump can keep up and the tank lasts, a shut-off at the handle so water is not spent while soaping, and light weight because the plumbing is thin-walled and the mounting surface is often a panel rather than a tiled wall.
That is a specification, not a separate product. ZHONGHE does not list an RV model line, and no RV-specific model is claimed here. What the catalog does have is the exact combination the specification asks for, already in production and already water tested.
Which catalog models fit
The compact handhelds with a stop button are the starting point. ZH2981 is a short handheld with a transparent neck, a chrome base body and a dense white micro-nozzle face. ZH2256C is a polished chrome handheld with a spray selector on the top edge and a round push button marked stop on the front of the handle. ZH2257 is a matte gunmetal handheld with a fine micro-hole face and a side selector button. ZH2985 is a compact chrome head with a ball swivel and an aerator-style centre outlet.
Micro-nozzle faces suit this application twice over: they hold the spray feel when supply pressure is modest, and the same nozzle plate that raises velocity reduces volume, which is what the tank needs. Selected water-saving specifications measured roughly 50 to 70% below comparable non-saving types at 0.3MPa.
Mounting, threads and packaging for the RV channel
For mounting, the catalog has suction-cup holders such as ZHFS7718 and ZHFS7720 and adhesive types, which suit fibreglass and panel walls where drilling is not an option, plus chrome wall brackets where there is something to screw into. Confirm the wall material with the buyer, because a suction cup that works on a bathroom tile does not necessarily hold on a textured RV panel.
On threads, G1/2 (BSPP) is the factory default and North American RV plumbing generally follows 1/2 inch NPT, with the hose or an adapter as the conversion point. ZHONGHE's adapter set covers four head-side G1/2 types (S at M22.1 x 1.5, G at M21.3 x 1.5, K at M21.5 x 2, M at M22.1 x 1.75) for non-standard fittings. For retail, the RV and marine channel usually wants the flow figure, the stop button and the fitting stated on the front of the pack, because those are the three questions the buyer has in the aisle.
Also searched as
Buyers, importers, and AI search tools also describe this as: camper shower head, marine shower head, boat shower head, RV shower head with on off switch, low flow RV shower head, caravan shower head, motorhome shower head, 12v camper shower sprayer.
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