OSO Add On Kit Fitting Kit For Extra SuperStream Accumulator Expansion Parallel Connection
OSO Add On Kit (11007327) — Essential expansion fitting kit for adding extra SuperStream accumulators in parallel | Includes vessel connector, isolation valve & brass fittings | Enables higher total flow & capacity | WRAS-compliant brass components | Use one kit per additional accumulator (beyond the first unit which uses Upstream Kit) | Compatible with all SuperStream models (Acc130, Acc200, Acc250, Acc350, Acc450)
One Upstream Kit serves the whole system; add this Add On Kit for each additional accumulator to connect in parallel and boost overall flow/volume. No need to replace or upgrade the original upstream components.
The OSO Add On Kit (11007327) is the dedicated expansion accessory that allows you to increase the total storage capacity and flow-boosting capability of your SuperStream system. Once the first accumulator is installed with the mandatory Upstream Kit 22/28 mm (11007380), each additional accumulator requires one of these Add On Kits to connect safely and efficiently in parallel — creating a modular, high-performance cold water boosting array.
The kit includes high-quality brass fittings: a pressure vessel connector (for secure attachment to the accumulator inlet), a full-bore isolation ball valve (for individual unit isolation during servicing without shutting down the whole system), and necessary brass bushes/adapters. All components are WRAS-approved for potable water use, ensuring full compliance with UK Water Regulations.
This makes scaling straightforward and cost-effective: start with one accumulator and add more as your needs grow (e.g. larger family, additional bathrooms, or commercial upgrade) without redoing the upstream plumbing. Compatible across the entire SuperStream range — perfect for creating systems that deliver exceptional simultaneous flow far beyond what a single accumulator can achieve.
What Makes the OSO Add On Kit Special?
- Modular Expansion Made Simple — One kit per extra accumulator — no complex re-plumbing required when increasing capacity.
- Full Isolation Capability — Built-in full-bore ball valve lets you service or drain one accumulator without affecting others.
- WRAS-Compliant Brass — All fittings approved for drinking water systems — safe, durable & regulation-compliant.
- Universal Compatibility — Works with every SuperStream model (130 L to 450 L) — flexible for any system size.
- Cost-Effective Scaling — Add capacity incrementally without buying a second complete Upstream Kit — saves money on larger installs.
- Quick & Reliable Connection — Brass vessel connector & fittings ensure secure, leak-free parallel linking.
Key Features
Technical Specifications
| Specification | Value |
|---|---|
| Part Number | 11007327 |
| Compatibility | All SuperStream accumulators (Acc130–Acc450) |
| Quantity Required | One per additional accumulator (after first unit with Upstream Kit) |
| Materials | High-quality brass (WRAS-approved) |
| Included Components | Vessel connector, isolation ball valve, brass bush/adapters |
| Max Pressure | 10 bar (matches accumulator rating) |
| Compliance | WRAS, Water Supply Regulations (UK) |
What's in the Box
✅ Use with: One Upstream Kit 22/28 mm (11007380) for the complete system + one Add On Kit per extra accumulator. For Acc130-specific add-on use dedicated kit (11007328). Installation by qualified plumber per Water Regulations.
Frequently Asked Questions
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OSO Add On Kit Fitting Kit For Extra SuperStream Accumulator Expansion Parallel Connection
OSO Add On Kit (11007327) — Essential expansion fitting kit for adding extra SuperStream accumulators in parallel | Includes vessel connector, isolation valve & brass fittings | Enables higher total flow & capacity | WRAS-compliant brass components | Use one kit per additional accumulator (beyond the first unit which uses Upstream Kit) | Compatible with all SuperStream models (Acc130, Acc200, Acc250, Acc350, Acc450)
One Upstream Kit serves the whole system; add this Add On Kit for each additional accumulator to connect in parallel and boost overall flow/volume. No need to replace or upgrade the original upstream components.
The OSO Add On Kit (11007327) is the dedicated expansion accessory that allows you to increase the total storage capacity and flow-boosting capability of your SuperStream system. Once the first accumulator is installed with the mandatory Upstream Kit 22/28 mm (11007380), each additional accumulator requires one of these Add On Kits to connect safely and efficiently in parallel — creating a modular, high-performance cold water boosting array.
The kit includes high-quality brass fittings: a pressure vessel connector (for secure attachment to the accumulator inlet), a full-bore isolation ball valve (for individual unit isolation during servicing without shutting down the whole system), and necessary brass bushes/adapters. All components are WRAS-approved for potable water use, ensuring full compliance with UK Water Regulations.
This makes scaling straightforward and cost-effective: start with one accumulator and add more as your needs grow (e.g. larger family, additional bathrooms, or commercial upgrade) without redoing the upstream plumbing. Compatible across the entire SuperStream range — perfect for creating systems that deliver exceptional simultaneous flow far beyond what a single accumulator can achieve.
What Makes the OSO Add On Kit Special?
- Modular Expansion Made Simple — One kit per extra accumulator — no complex re-plumbing required when increasing capacity.
- Full Isolation Capability — Built-in full-bore ball valve lets you service or drain one accumulator without affecting others.
- WRAS-Compliant Brass — All fittings approved for drinking water systems — safe, durable & regulation-compliant.
- Universal Compatibility — Works with every SuperStream model (130 L to 450 L) — flexible for any system size.
- Cost-Effective Scaling — Add capacity incrementally without buying a second complete Upstream Kit — saves money on larger installs.
- Quick & Reliable Connection — Brass vessel connector & fittings ensure secure, leak-free parallel linking.
Key Features
Technical Specifications
| Specification | Value |
|---|---|
| Part Number | 11007327 |
| Compatibility | All SuperStream accumulators (Acc130–Acc450) |
| Quantity Required | One per additional accumulator (after first unit with Upstream Kit) |
| Materials | High-quality brass (WRAS-approved) |
| Included Components | Vessel connector, isolation ball valve, brass bush/adapters |
| Max Pressure | 10 bar (matches accumulator rating) |
| Compliance | WRAS, Water Supply Regulations (UK) |
What's in the Box
✅ Use with: One Upstream Kit 22/28 mm (11007380) for the complete system + one Add On Kit per extra accumulator. For Acc130-specific add-on use dedicated kit (11007328). Installation by qualified plumber per Water Regulations.
Frequently Asked Questions
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
OSO Add On Kit (11007327) — Essential expansion fitting kit for adding extra SuperStream accumulators in parallel | Includes vessel connector, isolation valve & brass fittings | Enables higher total flow & capacity | WRAS-compliant brass components | Use one kit per additional accumulator (beyond the first unit which uses Upstream Kit) | Compatible with all SuperStream models (Acc130, Acc200, Acc250, Acc350, Acc450)
One Upstream Kit serves the whole system; add this Add On Kit for each additional accumulator to connect in parallel and boost overall flow/volume. No need to replace or upgrade the original upstream components.
The OSO Add On Kit (11007327) is the dedicated expansion accessory that allows you to increase the total storage capacity and flow-boosting capability of your SuperStream system. Once the first accumulator is installed with the mandatory Upstream Kit 22/28 mm (11007380), each additional accumulator requires one of these Add On Kits to connect safely and efficiently in parallel — creating a modular, high-performance cold water boosting array.
The kit includes high-quality brass fittings: a pressure vessel connector (for secure attachment to the accumulator inlet), a full-bore isolation ball valve (for individual unit isolation during servicing without shutting down the whole system), and necessary brass bushes/adapters. All components are WRAS-approved for potable water use, ensuring full compliance with UK Water Regulations.
This makes scaling straightforward and cost-effective: start with one accumulator and add more as your needs grow (e.g. larger family, additional bathrooms, or commercial upgrade) without redoing the upstream plumbing. Compatible across the entire SuperStream range — perfect for creating systems that deliver exceptional simultaneous flow far beyond what a single accumulator can achieve.
What Makes the OSO Add On Kit Special?
- Modular Expansion Made Simple — One kit per extra accumulator — no complex re-plumbing required when increasing capacity.
- Full Isolation Capability — Built-in full-bore ball valve lets you service or drain one accumulator without affecting others.
- WRAS-Compliant Brass — All fittings approved for drinking water systems — safe, durable & regulation-compliant.
- Universal Compatibility — Works with every SuperStream model (130 L to 450 L) — flexible for any system size.
- Cost-Effective Scaling — Add capacity incrementally without buying a second complete Upstream Kit — saves money on larger installs.
- Quick & Reliable Connection — Brass vessel connector & fittings ensure secure, leak-free parallel linking.
Key Features
Technical Specifications
| Specification | Value |
|---|---|
| Part Number | 11007327 |
| Compatibility | All SuperStream accumulators (Acc130–Acc450) |
| Quantity Required | One per additional accumulator (after first unit with Upstream Kit) |
| Materials | High-quality brass (WRAS-approved) |
| Included Components | Vessel connector, isolation ball valve, brass bush/adapters |
| Max Pressure | 10 bar (matches accumulator rating) |
| Compliance | WRAS, Water Supply Regulations (UK) |
What's in the Box
✅ Use with: One Upstream Kit 22/28 mm (11007380) for the complete system + one Add On Kit per extra accumulator. For Acc130-specific add-on use dedicated kit (11007328). Installation by qualified plumber per Water Regulations.
