Plumbco offers the full range of Wavin Osma products, including RoundLine and SquareLine gutter systems, brackets, outlets, stopends, and gutter angles. Renowned for their high-quality PVC-U construction and reliable performance, Wavin Osma fittings provide durable, efficient solutions for domestic and commercial rainwater management. Explore our selection for seamless installation, long-lasting durability, and a professional finish across all roofing and drainage projects.
High‑quality Wavin OsmaS PVCU Boss Adaptor BK 50 S/S (2S402B) – robust unplasticised PVC‑U boss adaptor for secure 50 mm soil and waste pipe connections. Ideal for above‑ground drainage, plumbing installations and ring‑seal pipe systems, this fitting delivers reliable performance and easy, leak‑proof integration into OsmaS systems. Suitable for residential and commercial plumbing projects.
The Wavin OsmaSoil 2S402G Ring Seal Boss Adaptor 50mm Grey is a high-quality PVC-U fitting designed for secure and leak-free connections in soil and waste pipe installations. Suitable for both domestic and commercial plumbing systems, it ensures easy installation, durable performance, and reliable pipe alignment. Ideal for connecting pipes with ring seal ends, this adaptor provides long-lasting functionality in any plumbing setup.
The Wavin OsmaSoil 2S402W Ring Seal Boss Adaptor (50mm) in white is a high-quality PVC fitting designed for secure and leak-proof connections in soil and waste pipe systems. Its ring seal design ensures a tight fit, providing reliable performance for both domestic and commercial plumbing applications. Easy to install and highly durable, this adaptor guarantees long-lasting and efficient pipe connections.
The Wavin Osma RoundLine OT026G 68 mm Offset Spigot Bend (Grey) is a high-quality uPVC fitting designed to redirect water flow in downpipe systems where a slight offset is required. Ideal for navigating around structural obstacles, this bend ensures a smooth, leak-free transition between downpipe sections.
Constructed from UV-stabilised grey uPVC, the OT026G is resistant to weathering, impact, and discolouration. Its push-fit Flexiclip seal system allows for easy, tool-free installation while maintaining a secure and watertight joint.
The Wavin Osma RoundLine OT026N 68 mm Offset Spigot Bend (Brown) is a high-quality uPVC fitting designed to provide a precise offset in 68 mm RoundLine downpipe systems. Ideal for navigating around obstacles or aligning downpipes, this bend ensures smooth, leak-free water flow.
Made from UV-stabilised brown uPVC, the OT026N is resistant to weathering, impact, and colour fading. Its push-fit Flexiclip seal system allows for quick, secure, and watertight installation without the need for additional sealants.
The Wavin Osma RoundLine T026W 68 mm Offset Spigot Bend (White) is a robust uPVC fitting designed to create a precise offset in 68 mm RoundLine downpipe systems. Perfect for navigating around fascia boards, walls, or other structural features, it ensures a smooth and watertight connection for efficient rainwater flow.
Manufactured from UV-stabilised white uPVC, this spigot bend resists weathering, impact, and discolouration. Its push-fit Flexiclip seal system allows quick and easy installation, providing a secure, leak-free connection without the need for sealant.
High-quality Wavin Osma Roundline Offset Bend Spigot 68mm Anthracite Grey (T026AG) — designed to create smooth directional offsets in 68mm round guttering and downpipe systems. Manufactured from durable PVC-U, this fitting ensures secure, leak-resistant connections for reliable roofline and rainwater drainage installations.
The Wavin Osma OsmaW PP Straight Tank Connector WT 32 (4Z185W) is a durable 32mm white polypropylene connector designed for secure and reliable connections to water tanks within OsmaW systems. Manufactured from high-quality PP, it offers excellent corrosion resistance, long-lasting performance and a leak-proof fit. Perfect for domestic and commercial plumbing installations, this genuine Wavin Osma fitting ensures smooth water flow and professional results.
The Wavin Osma SuperLine External Stopend 125mm Black (5T511B) is a durable PVC‑U gutter end cap designed to securely blank off the external end of a 125 mm half‑round SuperLine rainwater gutter run. Complete with a watertight EPDM seal for reliable performance, this stopend fitting ensures effective roof drainage and protection from water ingress in commercial and large domestic roofing systems. Compatible with other SuperLine gutter components, it’s a must‑have part for finishing gutter runs and maintaining a neat, weather‑resistant installation.
The Wavin Osma RoundLine OT009B Gutter Union in Black is designed to securely join two 112mm semi-round gutter sections, ensuring a continuous and leak-free rainwater system. Made from durable PVC-U, this union features expansion markings to accommodate thermal movement, maintaining the integrity of the gutter system. Ideal for domestic applications, it supports roof areas up to 163m² with a single downpipe.
The Wavin Osma RoundLine OT009W Gutter Union in white is a high-quality PVC gutter connector designed for 112mm semi-round hanging gutters. It provides secure, easy-to-install jointing for gutter sections, ensuring reliable water flow and durability.
The Wavin Osma RoundLine OT009G Gutter Union (Grey, 112 mm) is a high-quality uPVC fitting designed to join two lengths of 112 mm RoundLine gutter. Its secure push-fit connection ensures a watertight seal, maintaining seamless water flow across your gutter system.
Crafted from UV-stabilised grey uPVC, this gutter union is resistant to weathering and retains its colour over time. It’s perfect for residential roofline applications, providing a neat and durable solution for joining gutter runs.
The Wavin Osma RoundLine OT009N Gutter Union (Brown, 112 mm) is a premium-quality uPVC fitting designed to connect two lengths of RoundLine gutter securely. This fitting provides a reliable, watertight joint, ensuring continuous water flow and long-lasting system performance.
Manufactured from UV-stabilised brown uPVC, it’s resistant to discolouration and harsh weather conditions, maintaining its smart appearance for years. The push-fit Flexiclip seal ensures easy installation and a tight, leak-free connection. Ideal for use in residential rainwater systems and compatible with all 112 mm RoundLine components.
The Wavin OsmaW ABS Tee 45° WT 40x40 White (5Z210W) is designed to split or join pipework at a 45° angle, ensuring smooth water flow in plumbing and drainage systems. Manufactured from high-quality ABS, this tee offers excellent durability, chemical resistance, and a secure, leak-free connection. Ideal for domestic and commercial installations, it provides a reliable solution for efficient water distribution and system integrity.
The Wavin OsmaW ABS Tee 45° 40x40 Grey (5Z210G) is designed to split or join pipework at a 45° angle, ensuring smooth water flow in plumbing and drainage systems. Made from high-quality ABS, this grey tee offers excellent durability, chemical resistance, and a secure, leak-free connection. Ideal for domestic and commercial installations, it provides a reliable solution for efficient water distribution and long-lasting system performance.
The Wavin OsmaW ABS Tee 45° 40x40 Black (5Z210B) allows you to split or join pipework at a 45° angle, ensuring smooth water flow in plumbing and drainage systems. Manufactured from high-quality ABS, this black tee provides excellent durability, chemical resistance, and a secure, leak-free connection. Suitable for both domestic and commercial installations, it delivers reliable performance and long-lasting system integrity.
The Wavin Osma OsmaS 110mm PVC-U Balloon Grating (White) 4S302W provides a reliable and durable cover for soil and waste pipe outlets. Ideal for domestic and commercial plumbing, it protects openings while allowing proper ventilation and drainage.
The Wavin OsmaSoil 4S302B Balloon Grating is a robust 110mm black grating designed for efficient drainage and debris filtration in soil pipe systems. Its durable construction ensures long-lasting performance in residential and commercial drainage installations.
The Wavin OsmaSoil 4S302G 110mm Balloon Grating in Grey offers an effective solution for preventing debris from entering soil stacks and drainage systems. Designed for use with 110mm OsmaSoil pipes, this durable PVC-U grating provides long-lasting protection and is easy to install, making it ideal for residential and commercial soil systems.
High‑quality Wavin OsmaS PP All Fit Redn Bend 90° WT 50×40 (2S355W) — a reliable 90° reducing bend for 50 mm to 40 mm connections in soil, waste and vent drainage systems. Crafted from durable polypropylene for secure, leak‑resistant joints in above‑ground drainage and plumbing installations, ideal for both residential and commercial projects.