The FlexiGas 15mm Double Sleeved Flexible Gas Pipe (DS-15) – 75m Spool is a pre-sleeved, twin-layer CSST gas pipe designed to pass through solid walls, solid floors, screed, soil and unvented voids straight from the spool, without requiring additional sleeving on site. Certified under the BSI Kitemark scheme (KM 598726) and manufactured to BS/EN 15266, it bends easily by hand for long continuous runs and supports fast, flame-free installation.
DN15 / 15mm
75m Spool
BSI Kitemark KM 598726
BS/EN 15266
Pipe Size
DN15 / 15mm
Spool Length
75 metres
Max Pressure
0.5 bar
Material
1.4404 / 1.4541 Stainless Steel
Applications & suitability
Domestic Gas Installations
Suitable for 15mm domestic gas installation work where flexible CSST pipework is required.
Solid Walls & Floors
The integrated sleeve allows installation through solid walls, floors and structural elements.
Screed, Soil & Voids
Designed for routing through screed, earth or soil, unventilated voids and unventilated risers.
Contractor Installations
The 75m spool is suited to busy Gas Safe engineers and contractors carrying out multiple installations.
Key specifications
| Manufacturer / MPN |
FlexiGas™ / DS-15-75 |
| Size |
DN15 (15mm) |
| Length |
75 metres – spool |
| CSST Outer Diameter |
18.1mm |
| CSST Internal Diameter |
14.1mm |
| Total Maximum Diameter Including Sleeve |
26mm |
| Maximum Operating Pressure |
0.5 bar (BS/EN 15266) |
| Tubing Material |
1.4404 / 1.4541 stainless steel (BS/EN 10088) |
| Fire Performance |
EN 1775 Annex A & B passed; jacket B-s1 d0, UV resistant |
| Certification |
BSI Kitemark KM 598726, EN 15266 |
| Colour |
Yellow |
| Warranty |
1 year (subject to manufacturer's T&Cs) |
Installation & compatibility
The FlexiGas DS-15 features a patent-pending pipe-in-pipe construction, combining an inner corrugated stainless steel gas pipe with a yellow PE cover inside a V0 fire-rated corrugated sleeve. The slidable configuration allows the CSST to be inserted and withdrawn. The integrated sleeve is designed to meet the definition of a sleeve in UK regulations and supports installation through solid floors, solid walls, structural elements, earth/soil, screed, unventilated voids and unventilated risers.
Design & performance benefits
Patent-Pending Pipe-in-Pipe Design
Inner corrugated stainless steel gas pipe, yellow PE cover and V0 fire-rated corrugated sleeve in a slidable configuration.
Flexible Installation
The CSST bends easily by hand, helping create long continuous runs with fewer joints.
Flame-Free Installation
No soldering, sealants or specialist tools are required for the flexible pipe installation process.
Secure FGLink Compatibility
Compatible with the FlexiGas™ FGLink™ range of 130+ dezincification-resistant brass fittings.
Additional installation features
FG Bond™ Ready
Integrated earthing terminal certified to BS 951:2009 for use with FG Bond™.
Metre-Marked Tubing
Metre markings help with measuring and planning pipe runs during installation.
Silicone Tape Included
Each 75m spool includes one free roll of silicone tape.
Ideal for
The FlexiGas DS-15 75m Spool is ideal for busy Gas Safe engineers and contractors carrying out multiple 15mm domestic gas installations. The long spool length can help keep cost per metre down and minimise wastage, while compatibility with the FlexiGas spool roller, DS end caps and FGLink™ fittings provides a practical solution for fast, flexible and compliant gas pipe installations.
At GetPlumb, we strive to provide reliable and cost-effective delivery options to our customers. Please review our shipping policy below.
🆓 Free Local Delivery (Orders £100 & above)
We offer FREE delivery on orders £100 or more
for selected local areas.
Eligible Postcodes Include:
- RG*
- SL*
- OX10*, OX11*, OX49*
- HP1*, HP3*, HP8*, HP9*, HP10*, HP11*, HP12*, HP13*, HP14*
- WD*, HA*, UB*, TW*, KT*
- W1* – W9*
- NW*, SW*
Delivery Time: 2–4 working days
Shipping Cost: £0.00
📦 Standard Shipping (Weight-Based Rates)
For orders that do not qualify for free delivery, standard
shipping rates apply based on total cart weight.
- For cart weight between 0–2 kg, the shipping cost is £4.50 with a delivery time of 2–4 working days.
- For cart weight between 2–24 kg, the shipping cost is £9.99 with a delivery time of 2–4 working days.
- For cart weight between 24 kg and above, the shipping cost is £60 with a delivery time of 2–4 working days.
🧱 Block Salt (Harvey’s) – Unit-Based Shipping
This rate applies only to Harvey’s block salt products.
- £7.99 is charged for every 3 items.
- The charge increases by £7.99 for each additional set of 3 items.
Examples:
- 1–3 items → £7.99
- 4–6 items → £15.98
- 7–9 items → £23.97
Delivery Time: 2–4 working days
📏 Large / Long Items (Length-Based Shipping)
For oversized items where the product length is 1.5 metres or more:
Conditions:
- Product length ≥ 1.5 m
- Cart weight ≤ 40 kg
Shipping Cost: £18.00 (flat rate)
Delivery Time: 2–4 working days
Collection from Store
Customers can also choose to collect their order from our store in
Reading, UK, at no additional charge. For any questions regarding shipping, please contact our support team at online@getplumb.co.uk.
