300mm Inspection Chamber Riser 200mm Depth

£20.80ex. VAT
£20.80ex. VAT

Nationwide Delivery

Thu 25 Jun

Order by 2pm today
  • 8hrs
  • 36mins
  • 36secs

Delivery & Returns Info

Nationwide Delivery

Thu 25 Jun

Order by 2pm today
  • 8hrs
  • 36mins
  • 36secs

Delivery & Returns Info

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Delivery & Returns Information

Delivery charges vary by product category and order value. Items may ship from different suppliers and arrive separately, so delivery charges can be shown per part of your order at checkout.

Standard (Nationwide) Delivery

Timber & Sheet, Building Materials, Joinery and Gardens & Landscaping Products
ORDER VALUE DELIVERY CHARGE
Under £300 £20 ex. VAT
Over £300 ex. VAT FREE

Express Delivery

Express Delivery - Insulation and Plasterboard & Drylining
ORDER VALUE DELIVERY CHARGE
Under £400 £90 ex. VAT
Over £400 ex. VAT £55 ex. VAT
Express Delivery - Timber & Sheet, Building Materials, Joinery and Gardens & Landscaping Products
ORDER VALUE DELIVERY CHARGE
Under £300 £50 ex. VAT
Over £300 ex. VAT £35 ex. VAT

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How delivery works

We work with a nationwide network of trusted suppliers. Items in your basket may be supplied by different suppliers and delivered separately. Where this applies, you will see delivery charges shown at checkout for each part of your order. We always aim to group products from the same supplier to keep delivery costs as low as possible.

Delivery areas

Delivery charges apply to mainland UK, excluding: AB, CA, CF, DD, DG, EH, EX, FK, KA, KW, KY, IV, LA, LD, LL, ML, NP, PA, PH, PL, SA, SY, TR, TQ and TD.

If your address is in one of these areas, we will contact you before processing your order to confirm any additional costs. We do not currently offer delivery outside the UK mainland.

What to expect on delivery day

  • Deliveries are typically kerbside.
  • Please ensure someone is on-site to accept delivery. For heavier items, help with offloading may be required.
  • Many building materials arrive on large vehicles. If access is restricted, a specialist vehicle such as a HIAB may be required and could incur an additional charge.

Why delivery can cost more than typical parcel delivery

Building materials often travel on larger vehicles and usually carry fewer drops per run than parcel networks. That is why delivery charges can be higher than standard e-commerce shipping.

Returns

Returns depend on what you have bought and whether there is anything wrong with it. For full details on eligibility, timeframes, and exclusions, please see our full policy.

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Key Features

  • {{height}} Extends the height of 300mm inspection chambers
  • {{water_drop}} Secure, watertight extension
  • {{route}} Suitable for both foul and surface water drainage systems
  • {{format_line_spacing}} Can be stacked to achieve required chamber depth 

Technical Specification

Technical Specification
URN: 7001403
Product: Riser
Material Type: PVC
Depth: 200mm
Diameter: 300mm
Sales Unit: Each
Manufacturer's Reference: D822

Product Overview

300mm Inspection Chamber Riser with 200mm depth designed to extend the height of 300mm inspection chambers. Used in underground drainage installations, this riser ensures chamber covers can be set to the correct ground level while maintaining access for inspection and maintenance.

Manufactured in durable, high-strength material, the riser provides a secure, watertight extension to the chamber system. It integrates precisely with 300mm inspection chamber bases and additional risers where greater depth is required.

The 200mm depth allows for flexible adjustment in chamber height without compromising performance. Multiple risers can be stacked to achieve the necessary ground cover, making the component adaptable to different site conditions.

Suitable for both foul and surface water drainage, the riser offers long-term reliability in residential and light commercial applications. Its compact size makes handling and installation straightforward while maintaining system compliance.

Features & Benefits

  • Durable construction: Manufactured from robust, long-lasting material for underground use.
  • Height adjustment: Provides 200mm depth to bring chamber cover to finished ground level.
  • System compatibility: Fits securely with 300mm inspection chamber bases and additional risers.
  • Flexible installation: Can be stacked to achieve required chamber depth on site.
  • Reliable performance: Suitable for foul and surface water drainage systems.
  • Nominal size: 300mm inspection chamber riser with 200mm depth.


Applications

  • Underground drainage: Extends chamber height for secure access at ground level.
  • Residential projects: Provides flexible chamber depth in domestic drainage layouts.
  • Light commercial works: Suitable for chamber extensions in small commercial drainage systems.
  • Maintenance access: Ensures inspection points remain accessible after backfilling and landscaping.


Installation Guidance

  • Preparation: Position riser directly on top of chamber base or another riser.
  • Sealing: Ensure watertight joint connection using appropriate seals or locking mechanisms.
  • Stacking: Add additional risers where greater chamber depth is required.
  • Cover fitting: Complete assembly with a compatible 300mm chamber cover for surface access.
  • Backfilling: Compact surrounding material evenly to maintain chamber stability.


Compliance & Performance

  • Material standard: Manufactured to meet drainage system specifications for underground components.
  • Load capacity: Designed to withstand ground loadings when correctly installed and backfilled.
  • System suitability: Approved for use in both foul and surface water applications.
  • Installation compliance: Meets Building Regulations requirements for inspection chamber construction.
  • Important note: Ensure risers are correctly aligned and securely fitted to maintain watertight performance.



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