Holman / STORM PVC Adaptor Down Pipe 100×50×90 mm
Ensure seamless connectivity between roof outlets and downpipes with the Holman / STORM PVC Adaptor Down Pipe 100×50×90 mm—a certified and robust adapter for efficient stormwater management in residential or light‑commercial settings.
Product Overview
Fabricated from premium recycled PVC, this adaptor is designed to connect a 100 mm downpipe to a 50 mm spigot or outlet—ideal for integrating gutter systems, tank overflows or inspection points. It is solvent‑welded for a permanent, watertight join and compliant with AS/NZS 1254 plumbing standardsÂ
Key Features
- Connection dimensions: 100 mm inlet × 50 mm outlet × 90 mm adapter height.
- Materials: Recycled PVC—durable, corrosion‑resistant, and impact‑tolerant .
- Inspection-access flap: Some models include a flap for interior inspection access and overflow protection .
- Standards & certification: Fully WaterMark certified, compliant with AS/NZS 1254 (AMI 70007), ISO type 5
- Lightweight: Approximately 0.08 kg, making it easy to handle and install .
Typical Variations & Models
| Variant Code | Description | Notes |
| SWF0050 | Standard adaptor (no flap) | Basic connection option |
| SWF0055 | Adaptor with inspection flap | Facilitates cleaning/overflow |
| Other sizes | 100×50×75 mm, 100×50×100 mm options | Alternate heights available |
Benefits at a Glance
- Plumbing‑standard compliance: Supported by AS/NZS 1254 and WaterMark certification
- Resilient recycled PVC: Highly resistant to corrosion, wear and partial impacts.
- Secure, solvent‑weld installation: Ensures a permanent and watertight joint.
- Inspection‑flap option: Provides easy access for cleaning or drainage overflow protection.
- Lightweight and compact: Simple to carry and fit into tight spaces.
Ideal Applications
- Connects roof gutter downpipes, overflow lines, or tank inlet systems to larger pipes.
- Enables access for inspection or cleaning via flap-enabled model.
- Works well in retrofit and new-build plumbing systems.
The Holman / STORM PVC Adaptor Down Pipe 100×50×90 mm delivers a quality-engineered, certified solution to match roof drainage seamlessly with standard pipework. Featuring either a plain or inspection variant, recycled PVC durability, and ease of installation, it’s a reliable component for your stormwater setup. With regulatory compliance and user‑friendly design, it offers effective connectivity and long service life.
Need assistance selecting between the plain or flange‑flap version, or integrating it into your system? Our team is ready to assist!










