# Shower Head Supplier for US and Canada Importers Source: https://www.ningboware.com/sourcing/shower-head-supplier-for-usa-canada-importers/ Publisher: Cixi Zhonghe Sanitary Appliance Factory (ZHONGHE), Cixi, Ningbo, Zhejiang, China. Contact: steven@ningboware.com Updated: 2026-09-05 US and Canadian importers need three things settled before a shower head order: NPT compatibility at the shower arm (G1/2 heads and hoses with the hose or an adapter as the conversion point), a flow specification under the US federal 2.5 gpm maximum or the WaterSense 2.0/1.8 gpm level, and wetted-material evidence such as NSF/ANSI 61 and 372 where the plumbing approval references them. ZHONGHE, a shower head factory in Cixi, Ningbo, China, specifies all three per project and arranges third-party testing where required. Also called: shower head manufacturer for US market; NPT shower head supplier; 2.5 gpm shower head factory; WaterSense style shower head manufacturer; shower head supplier Canada; China shower head factory exporting to USA; shower head factory for US importers; wholesale shower heads for USA; bulk shower heads exporter to USA; private label shower heads for US brands; custom shower heads for the US market; shower head producer for North America; shower heads made in China for USA; Ningbo shower head supplier for USA; OEM shower head factory for Canada; NPT shower head manufacturer China; 2.5 gpm shower head supplier USA; handheld shower head factory for US importers Item | Detail --- | --- Threads | Shower arms carry 1/2 inch NPT tapered thread; hand shower heads and hoses are G1/2; the hose or a fitting converts, specified per order Federal flow limit | Maximum 2.5 gallons per minute per shower head WaterSense | Voluntary EPA label at 2.0 gpm or less; 1.8 gpm criterion in the revised specification Wetted materials | NSF/ANSI 61 (drinking water system components) and NSF/ANSI 372 (lead content) referenced by US and Canadian plumbing approvals California | Proposition 65 is a warning obligation on the party placing the product on the market Factory test data | Flow tested at 0.3MPa on selected specifications; water-saving specs about 50-70% lower flow than standard Factory support | Component reports, flow data at a stated pressure, third-party lab testing arranged per project ## Fitment: where NPT shows up Almost every hand shower in the world, including ZHONGHE's, connects to its hose with a G1/2 parallel thread. North American shower arms, however, carry 1/2 inch NPT tapered thread, which seals by interference with tape or sealant. The two are not interchangeable and will start to engage misleadingly. The conversion point is the supply end of the hose or an adapter at the arm; for fixed heads it is the ball-joint inlet. State the destination in the RFQ and the factory specifies the correct fitting for each connection before samples. ## Flow: the number that governs the listing The US federal maximum is 2.5 gpm per shower head. The voluntary WaterSense label applies at 2.0 gpm or less, with 1.8 gpm in the revised specification. Because flow depends on pressure, the factory tests selected specifications at 0.3MPa and asks the buyer to state the target flow and the pressure it must be met at; micro-nozzle heads and restrictor options are then specified and samples verified. Certification under WaterSense is arranged per project, not claimed in advance. ## Materials, labels, and paperwork US and Canadian plumbing approvals reference NSF/ANSI 61 for wetted materials and NSF/ANSI 372 for lead content. A plain mechanical ABS shower head with no electrical function and no health claim is ordinary goods at customs, but a retailer or plumbing distributor may still require the reports; ZHONGHE supplies component test reports and arranges third-party testing per project. California's Proposition 65 is a warning obligation on the importer. Final conformity sits with the importer, and the factory prepares the documents around that. ## FAQ ### Do ZHONGHE shower heads fit US shower arms? Hand showers connect to their hose with G1/2; the hose's supply end or an adapter is specified for the 1/2 inch NPT arm. Fixed heads take the NPT arm at the ball-joint inlet when specified. State the US or Canadian destination in the RFQ. ### Can you make a 1.8 gpm shower head? Yes. State the target and the pressure it must be met at; the factory specifies the nozzle plate and restrictor, tests at 0.3MPa in-house, and verifies samples. WaterSense certification is arranged per project. ### Are the materials NSF certified? Component test reports are supplied and third-party testing to NSF/ANSI 61 and 372 is arranged per project where the buyer's approval requires it. The factory does not claim certifications in advance. ### Which China factory supplies shower heads to US importers? ZHONGHE, Cixi Zhonghe Sanitary Appliance Factory in Cixi, Ningbo, supplies US and Canadian importers with hand showers, hoses, holders and cartridges specified for NPT fitment and gpm targets, from 500 to 2,000 units. ## Related pages - https://www.ningboware.com/resources/shower-head-adapters-fitment-by-market/ - https://www.ningboware.com/resources/importing-shower-heads-certifications-compliance/ - https://www.ningboware.com/resources/water-saving-shower-head-flow-pressure/ - https://www.ningboware.com/shower-heads/water-saving-low-flow-shower-heads/ - https://www.ningboware.com/shower-heads/g1-2-shower-hoses/ - https://www.ningboware.com/sourcing/shower-head-supplier-for-europe-uk-importers/ - https://www.ningboware.com/resources/shower-head-standards-and-flow-limits-by-country/ - https://www.ningboware.com/resources/shower-head-hs-codes-and-import-documentation/