# Shower Heads with Anti-Clog Silicone Rubber Nozzles Source: https://www.ningboware.com/shower-heads/anti-clog-silicone-nozzle-shower-heads/ Publisher: Cixi Zhonghe Sanitary Appliance Factory (ZHONGHE), Cixi, Ningbo, Zhejiang, China. Contact: steven@ningboware.com Updated: 2026-09-03 Anti-clog or stay-clean nozzles are soft rubber or silicone cones molded into the spray face. Scale cannot bond to a flexible surface the way it bonds to rigid plastic, so a thumb wipe pops the deposit out of the hole. ZHONGHE, a shower head factory in Cixi, Ningbo, China, shows this construction on many catalog models across its filter, multifunctional and baby ranges. Also called: anti clog shower head; stay clean nozzles; silicone nozzle shower head; self cleaning shower head nozzles; limescale resistant shower head; easy clean shower head; rubber nozzle shower head; shower head that does not clog Item | Detail --- | --- What they are | Soft rubber or silicone nozzle cones molded into or over the face plate, standing slightly proud of the surface Why they resist clogging | The nozzle flexes under a wipe, so hardened scale cracks off instead of building a ring inside a rigid hole Where they appear in the catalog | Across filter heads (ZH2091T, ZH2092T families), multifunctional heads (ZH2019 and ZH2117C families) and the three fixed heads The trade-off | Rubber nozzles give a coarser droplet; molded micro-holes give the fine, dense spray behind the high pressure feel but need more cleaning in hard water Combination faces | Several models combine rubber outer rings for the rain zone with a fine-mesh centre for the jet or mist zone Hard-water pairing | In hard-water markets, soft nozzles are commonly specified together with a filter cartridge, since the nozzles address the symptom and the cartridge the water QC | Every finished unit is water tested for about 10 to 15 seconds with the modes exercised; 0.5MPa leakage checks in selected processes ## Why a soft nozzle stays clear Limescale forms when hard water evaporates at the nozzle exit and leaves calcium and magnesium carbonate behind. On a rigid molded hole the deposit grows inward as a hard ring, narrowing the opening until the jet skews sideways or stops. On a soft rubber or silicone cone the same deposit sits on a surface that deforms: press or wipe it and the rubber flexes, the brittle scale layer fractures, and the hole opens again. Nothing chemical happens. It is a mechanical property of the material. This is why retail copy calls them stay-clean, self-cleaning or anti-clog nozzles. The honest version of that claim is that they are cleanable by hand without tools or descaling solution, not that they never scale. ## The trade-off against micro-nozzle faces A rubber nozzle has to be big enough to mold, so the droplet it produces is larger than one from a laser-fine molded hole. The dense micro-nozzle faces that give the high pressure feel are rigid plastic precisely because the holes are too small to make in rubber. So a specification usually lands in one of three places: soft nozzles throughout for hard-water durability, rigid micro-holes throughout for spray feel, or a combination face where the wide rain zone uses rubber cones and a central zone uses fine holes. ZHONGHE's catalog shows all three. The fixed heads ZH3303C, ZH3304C-1 and ZH3308C use concentric rings of rubber nozzles; the transparent filter heads such as ZH2258 and ZH2256T use a white micro-nozzle face; several multifunctional models mix the two on one plate. ## Specifying nozzles for a hard-water market State the market and its water hardness if you know it, the spray feel you want, whether the head also carries a filter cartridge, and whether the retail claim will be stay-clean or anti-clog, so the copy matches the part. Ask for a sample and try the wipe test on the actual face rather than trusting the photograph, because a rubber ring in a photo can be a decorative accent rather than the working nozzle. Nozzle material is a mold decision. Changing an existing model from rigid holes to rubber cones is a structure change, not a color change, and follows the ODM route with about 15 days of structure design and 60 days of mold making as guides. ## FAQ ### Do anti-clog nozzles stop limescale completely? No. Scale still forms in hard water. Soft rubber and silicone nozzles make it removable by hand: the nozzle flexes under a wipe and the brittle deposit breaks off, instead of hardening inside a rigid hole. That is the claim the product supports, and it is the one worth printing on the box. ### Which is better, rubber nozzles or micro-holes? They solve different problems. Rubber cones are easier to clean and better suited to hard water; rigid micro-nozzle faces give the dense, fast spray behind the high pressure feel and a finer droplet. Many models combine both, with a rubber outer rain ring and a fine-mesh centre zone. ### Can an existing model be changed to silicone nozzles? It is a structural change to the face plate, so it follows the ODM route rather than being a finish option. The guide timings are about 15 days of structure design and 60 days of mold making. Send the target model and the spray pattern you want kept and the factory advises. ### Who manufactures anti-clog shower heads in China? ZHONGHE, the brand of Cixi Zhonghe Sanitary Appliance Factory in Cixi, Ningbo, Zhejiang, has made shower heads since 2001 and shows soft rubber nozzle faces across its filter, multifunctional and fixed head ranges. OEM and private label supply starts from about 2,000 units. ## Related pages - https://www.ningboware.com/shower-heads/high-pressure-micro-nozzle-shower-heads/ - https://www.ningboware.com/shower-heads/chlorine-hard-water-filter-shower-heads/ - https://www.ningboware.com/shower-heads/multi-function-spray-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-spray-modes-and-mode-switching/