# Rain Shower Heads: Catalog Fixed Heads and the Rainfall ODM Route Source: https://www.ningboware.com/shower-heads/rain-shower-heads/ Publisher: Cixi Zhonghe Sanitary Appliance Factory (ZHONGHE), Cixi, Ningbo, Zhejiang, China. Contact: steven@ningboware.com Updated: 2026-09-03 A rain shower head is a wide-face overhead head that spreads water evenly over a large area at low velocity. ZHONGHE, a shower head factory in Cixi, Ningbo, China, lists three compact chrome fixed heads (ZH3303C, ZH3304C-1, ZH3308C) with ball-joint arm mounting; large 8, 10 and 12 inch faces and square rainfall panels are ODM development projects rather than catalog items. Also called: rainfall shower head; 12 inch rain shower head; 10 inch rain shower head; 8 inch rain shower head; square rain shower head; ceiling shower head; high pressure rain shower head; overhead rain shower; 顶喷花洒; 雨淋花洒 Item | Detail --- | --- What rainfall spray is | A wide face with evenly distributed nozzles at low exit velocity, so water falls rather than jets In the catalog today | Three compact fixed heads: ZH3303C (dome, lever selector), ZH3304C-1 (bell, single function), ZH3308C (bell, lever selector) Large rain faces | 8, 10 and 12 inch round faces and square panels are ODM development, not stock models Typical construction | ABS body with chrome plating, or an ABS body with a 304 stainless face plate, which is how large faces stay light and affordable at volume Mounting | Ball joint under a knurled collar on a wall or ceiling arm; G1/2 by default, 1/2 inch NPT arms in North America Flow | US programs normally target 2.5 gpm or lower; ZHONGHE flow tests selected specifications at 0.3MPa Combos | Pair a fixed head with the ZHFS7719 shower-arm holder, a hose and a handheld for a two-head set ## What makes a spray read as rainfall Rainfall is a nozzle layout decision, not a mechanism. A rain head spreads the same flow across a much larger face, so each nozzle passes less water and the droplets leave slowly and fall close to vertical. That is the opposite of the micro-nozzle high pressure construction, where a small face and fine holes raise exit velocity. Both start from the same supply pressure, so a buyer choosing rainfall is choosing coverage and a soft feel, and giving up the sensation of force. Because face area drives cost and weight, large rain heads are normally built as an ABS shell with either chrome plating or a thin 304 stainless face plate. ZHONGHE fits 304 stainless face plates on selected models and molds ABS bodies on 15 injection molding machines, which is the same construction route a large rain face would use. ## What ZHONGHE can supply from the catalog today The catalog fixed heads are compact, not large rain panels. ZH3303C is a chrome dome with a blue accent ring, a black rubber nozzle face and a side lever selector. ZH3304C-1 is bell shaped with grey rubber nozzles in concentric rings and a single spray pattern. ZH3308C is bell shaped with a green outer nozzle ring and a side lever. All three mount on a shower arm through a ball joint under a knurled chrome collar, so the aim is set by hand without tools. These suit apartment, hotel and replacement programs where the shower arm and ceiling height were not designed around a 300 mm face. They are water tested for about 10 to 15 seconds per unit before packing, with leakage checks at 0.5MPa in selected processes. ## Ordering a large rainfall head as an ODM project If the program needs an 8, 10 or 12 inch round face or a square panel, treat it as a development project rather than a catalog pick. Send the target face size and shape, the face material (chrome-plated ABS or stainless), the flow target at a stated pressure, the arm thread for the destination market, and whether a handheld is bundled. The guide timings are about 15 days of appearance design, 15 days of structure design and 60 days of mold making; existing molds ship after about 30 days of production. Say plainly in the RFQ whether the head must meet a regulated flow limit, because a large face at 2.5 gpm needs a different nozzle count and hole size from the same face at 1.8 gpm, and that decision is made before the mold is cut. ## FAQ ### Does ZHONGHE make 12 inch or 10 inch rain shower heads? Not as catalog models. The three fixed heads in the catalog (ZH3303C, ZH3304C-1, ZH3308C) are compact dome and bell formats for a shower arm. An 8, 10 or 12 inch face is an ODM development project: send the face size, material and flow target and the factory advises whether an existing structure can be adapted or a new mold is needed. ### Can you make a square rain shower head? The catalog head shapes are round dome and bell bodies, so a square face is a development request rather than a stock item. Square faces change the mold, the internal water path and the nozzle layout, so they follow the ODM route with about 15 days of structure design and 60 days of mold making as guides. ### How does a rain shower head mount? On a wall or ceiling shower arm, through a threaded inlet on a ball joint held by a knurled collar, so the spray angle is adjustable at the arm. G1/2 (BSPP) is the default thread; North American arms carry 1/2 inch NPT, so state the destination market in the RFQ. ### Can a rain head and a handheld run from the same arm? Yes, using the ZHFS7719 shower-arm holder, which mounts between the arm and the fixed head and adds a 360 degree swivel cradle for a hand shower. Add a hose and a handheld model and the set ships from one factory. See the dual shower head combo page for how the water is shared. ## Related pages - https://www.ningboware.com/shower-heads/dual-shower-head-combo/ - https://www.ningboware.com/shower-heads/overhead-fixed-shower-heads/ - https://www.ningboware.com/shower-heads/high-pressure-micro-nozzle-shower-heads/ - https://www.ningboware.com/products/multifunctional-shower-heads/ - https://www.ningboware.com/resources/shower-head-materials-guide/ - https://www.ningboware.com/resources/shower-head-adapters-fitment-by-market/