Aquascape Check Valves prevent water from flowing backward through pond and Pondless® Waterfall plumbing when the pump is turned off. They provide secure connections between pumps and plumbing while allowing easy access for equipment maintenance.
Dual Union Check Valve 2.0 — Item #48026
The Dual Union Check Valve 2.0 is designed for pond skimmers and Pondless® Waterfall Vaults.
- Connection size: 2 in. nominal plumbing.
- Valve design: Heavy-duty swing-style flapper prevents backflow.
- Connections: Dual-union design allows tool-free disconnection.
- Fittings: Reversible adapters accommodate different pump and plumbing connections.
- Height adjustment: Extendable configuration accommodates taller filters and pumps.
- Application: Pond skimmers and Pondless® Waterfall Vaults.
Dual Union 3 in. Check Valve — Item #29098
The Dual Union 3 in. Check Valve is designed for larger plumbing connections in ponds and water features.
- Connection size: 3 in. nominal plumbing.
- Valve design: Heavy-duty flapper prevents backflow when the pump stops.
- Connections: Dual-union design allows tool-free disconnection.
- Construction: Durable valve assembly designed for water-feature applications.
- Application: Pump and plumbing connections inside filtration systems and pump vaults.
Check Valve accessories and adapters
Aquascape offers additional fittings for specific pump connections and check valve configurations.
- Check Valve Adapter for EcoWave® Pond Pump — Item #88058: 2 in. FPT × 2 in. slip fitting. Connects EcoWave 2000–5000 pumps to the Dual Union Check Valve 2.0.
- Check Valve Dual Union 1.0 Aquascape Adapter Kit — Item #29705: Adapter kit for connecting an AquaSurge pump to an existing compatible first-generation check valve assembly.
Important: Dual Union Check Valve 1.0 and 2.0 components are not necessarily interchangeable. Verify the existing valve model and item number before ordering replacement fittings or adapters.
Product documentation
For additional product information, specifications, and available replacement components, visit the official product pages: