Browse our complete range of insulation for 15mm bore pipes across all K-FLEX product families. Multiple materials and wall thicknesses available to meet your thermal, condensation control, and application-specific requirements.

K-FLEX ST (Elastomeric): Premium nitrile rubber unslit tube for custom-fit applications
K-FLEX PE (Polyethylene): Closed-cell foam insulation for standard applications
K-FLEX PE PLUS: Enhanced fire-rated polyethylene with improved safety performance
K-FLEX PE COLOR: Colour-coded polyethylene (Red & Blue) for easy pipe identification
K-FLEX K-Rock Foiled: Mineral wool with aluminium foil facing for high-temperature applications
K-FLEX SOLAR HT: UV-protected EPDM for solar thermal and outdoor installations
Ideal for copper pipe installations in heating, cooling, plumbing, solar, and HVAC systems

15mm Bore Pipe Insulation

6×15 K-FLEX PE Tube Insulation - 2m

6×15 K-FLEX PE Tube Insulation - 2m

6×15 K-FLEX PE Tube Insulation - 2m

£0.41
9×15 K-FLEX PE Tube Insulation - 2m

9×15 K-FLEX PE Tube Insulation - 2m

9×15 K-FLEX PE Tube Insulation - 2m

£0.69
9×15 K-FLEX PE PLUS Tube Insulation - 2m

9×15 K-FLEX PE PLUS Tube Insulation - 2m

9×15 K-FLEX PE PLUS Tube Insulation - 2m

£0.81
13×15 K-FLEX PE Tube Insulation - 2m

13×15 K-FLEX PE Tube Insulation - 2m

13×15 K-FLEX PE Tube Insulation - 2m

£1.27
13×15 K-FLEX PE PLUS Tube Insulation - 2m

13×15 K-FLEX PE PLUS Tube Insulation - 2m

13×15 K-FLEX PE PLUS Tube Insulation - 2m

£1.51
9×15 K-FLEX PE COLOR Tube Insulation - Red - 2m

Sale

9×15 K-FLEX PE COLOR Tube Insulation - Red - 2m

9×15 K-FLEX PE COLOR Tube Insulation - Red - 2m

Sale price £1.68 Regular price £2.10
9×15 K-FLEX PE COLOR Tube Insulation - Blue - 2m

Sale

9×15 K-FLEX PE COLOR Tube Insulation - Blue - 2m

9×15 K-FLEX PE COLOR Tube Insulation - Blue - 2m

Sale price £1.68 Regular price £2.10
K‑Flex ST Tube 6mm × 15mm × 2m | Elastomeric Nitrile Rubber Insulation

K‑Flex ST Tube 6mm × 15mm × 2m | Elastomeric Nitrile Rubber Insulation

K‑Flex ST Tube 6mm × 15mm × 2m | Elastomeric Nitrile Rubber Insulation

£2.44
K‑Flex ST Tube 9mm × 15mm × 2m | Elastomeric Nitrile Rubber Insulation

K‑Flex ST Tube 9mm × 15mm × 2m | Elastomeric Nitrile Rubber Insulation

K‑Flex ST Tube 9mm × 15mm × 2m | Elastomeric Nitrile Rubber Insulation

£2.58
20×15 K-FLEX PE Tube Insulation - 2m

20×15 K-FLEX PE Tube Insulation - 2m

20×15 K-FLEX PE Tube Insulation - 2m

£2.79
13×15 K-FLEX PE COLOR Tube Insulation - Red - 2m

Sale

13×15 K-FLEX PE COLOR Tube Insulation - Red - 2m

13×15 K-FLEX PE COLOR Tube Insulation - Red - 2m

Sale price £3.46 Regular price £4.33
13×15 K-FLEX PE COLOR Tube Insulation - Blue - 2m

Sale

13×15 K-FLEX PE COLOR Tube Insulation - Blue - 2m

13×15 K-FLEX PE COLOR Tube Insulation - Blue - 2m

Sale price £3.46 Regular price £4.33
K‑Flex ST Tube 13mm × 15mm × 2m | Elastomeric Nitrile Rubber Insulation

K‑Flex ST Tube 13mm × 15mm × 2m | Elastomeric Nitrile Rubber Insulation

K‑Flex ST Tube 13mm × 15mm × 2m | Elastomeric Nitrile Rubber Insulation

£3.49
25×15 K-FLEX PE Tube Insulation - 2m

25×15 K-FLEX PE Tube Insulation - 2m

25×15 K-FLEX PE Tube Insulation - 2m

£4.39
25x15 K-Flex K-Rock Foiled - 1m

25x15 K-Flex K-Rock Foiled - 1m

25x15 K-Flex K-Rock Foiled - 1m

£5.72
K‑Flex ST Tube 19mm × 15mm × 2m | Elastomeric Nitrile Rubber Insulation

K‑Flex ST Tube 19mm × 15mm × 2m | Elastomeric Nitrile Rubber Insulation

K‑Flex ST Tube 19mm × 15mm × 2m | Elastomeric Nitrile Rubber Insulation

£5.73
20×15 K-FLEX PE COLOR Tube Insulation - Red - 2m

Sale

20×15 K-FLEX PE COLOR Tube Insulation - Red - 2m

20×15 K-FLEX PE COLOR Tube Insulation - Red - 2m

Sale price £6.66 Regular price £8.33
20×15 K-FLEX PE COLOR Tube Insulation - Blue - 2m

Sale

20×15 K-FLEX PE COLOR Tube Insulation - Blue - 2m

20×15 K-FLEX PE COLOR Tube Insulation - Blue - 2m

Sale price £6.66 Regular price £8.33
13×15 K-FLEX SOLAR HT Tube Insulation - 2m

13×15 K-FLEX SOLAR HT Tube Insulation - 2m

13×15 K-FLEX SOLAR HT Tube Insulation - 2m

£7.24
30x15 K-Flex K-Rock Foiled - 1m

30x15 K-Flex K-Rock Foiled - 1m

30x15 K-Flex K-Rock Foiled - 1m

£7.54
40x15 K-Flex K-Rock Foiled - 1m

40x15 K-Flex K-Rock Foiled - 1m

40x15 K-Flex K-Rock Foiled - 1m

£8.67
K‑Flex ST Tube 25mm × 15mm × 2m | Elastomeric Nitrile Rubber Insulation

K‑Flex ST Tube 25mm × 15mm × 2m | Elastomeric Nitrile Rubber Insulation

K‑Flex ST Tube 25mm × 15mm × 2m | Elastomeric Nitrile Rubber Insulation

£11.37
19×15 K-FLEX SOLAR HT Tube Insulation - 2m

19×15 K-FLEX SOLAR HT Tube Insulation - 2m

19×15 K-FLEX SOLAR HT Tube Insulation - 2m

£13.20
K‑Flex ST Tube 32mm × 15mm × 2m | Elastomeric Nitrile Rubber Insulation

K‑Flex ST Tube 32mm × 15mm × 2m | Elastomeric Nitrile Rubber Insulation

K‑Flex ST Tube 32mm × 15mm × 2m | Elastomeric Nitrile Rubber Insulation

£15.96

15mm Bore Pipe Insulation

6×15 K-FLEX PE Tube Insulation - 2m

9×15 K-FLEX PE Tube Insulation - 2m

9×15 K-FLEX PE PLUS Tube Insulation - 2m

13×15 K-FLEX PE Tube Insulation - 2m

13×15 K-FLEX PE PLUS Tube Insulation - 2m

9×15 K-FLEX PE COLOR Tube Insulation - Red - 2m

9×15 K-FLEX PE COLOR Tube Insulation - Blue - 2m

K‑Flex ST Tube 6mm × 15mm × 2m | Elastomeric Nitrile Rubber Insulation

K‑Flex ST Tube 9mm × 15mm × 2m | Elastomeric Nitrile Rubber Insulation

20×15 K-FLEX PE Tube Insulation - 2m

13×15 K-FLEX PE COLOR Tube Insulation - Red - 2m

13×15 K-FLEX PE COLOR Tube Insulation - Blue - 2m

K‑Flex ST Tube 13mm × 15mm × 2m | Elastomeric Nitrile Rubber Insulation

25×15 K-FLEX PE Tube Insulation - 2m

25x15 K-Flex K-Rock Foiled - 1m

K‑Flex ST Tube 19mm × 15mm × 2m | Elastomeric Nitrile Rubber Insulation

20×15 K-FLEX PE COLOR Tube Insulation - Red - 2m

20×15 K-FLEX PE COLOR Tube Insulation - Blue - 2m

13×15 K-FLEX SOLAR HT Tube Insulation - 2m

30x15 K-Flex K-Rock Foiled - 1m

40x15 K-Flex K-Rock Foiled - 1m

K‑Flex ST Tube 25mm × 15mm × 2m | Elastomeric Nitrile Rubber Insulation

19×15 K-FLEX SOLAR HT Tube Insulation - 2m

K‑Flex ST Tube 32mm × 15mm × 2m | Elastomeric Nitrile Rubber Insulation