The Guillemin Reducing Coupling provides a reliable size transition between DN20 and DN100 pipelines. Offered in aluminum, bronze, stainless steel and polypropylene, it suits hydraulic and pneumatic systems requiring compact, leak‑free connections. Threaded to standard BSP/ISO specifications, the coupling ensures easy installation and high durability. Available in a full range of reductions (e.g., DN20‑DN40, DN65‑DN100) and kept in stock for immediate delivery. Contact Cohimar for a quotation and fast supply.