Specifications

Size	Wall Thickness	Coil Lengths	Max Operating Pressure	Max Operating Temp	Bending Radius	Standards
16mm	2.0mm	100m, 200m, 500m, 1000m, 1200m	6 bar (20°C)	95°C	5× OD (80mm)	ISO 15875, WRAS
17mm	2.0mm	100m, 200m, 500m, 1000m, 10000m	6 bar (20°C)	95°C	5× OD (85mm)	ISO 15875, WRAS

PEX Pipe 16mm × 2mm

Coil Length	Code	Approx. Weight	List Price	Trade Price	Coverage @ 200mm centres
100m	PEX16-100	12 kg	£185.00	£133.50	20 m²
200m	PEX16-200	24 kg	£345.00	£249.00	40 m²
500m	PEX16-500	60 kg	£825.00	£595.00	100 m²
1000m	PEX16-1000	120 kg	£1,550.00	£1,120.00	200 m²
1200m	PEX16-1200	144 kg	£1,820.00	£1,315.00	240 m²

PEX Pipe 17mm × 2mm

Coil Length	Code	Approx. Weight	List Price	Trade Price	Coverage @ 200mm centres
100m	PEX17-100	13 kg	£210.00	£152.00	20 m²
200m	PEX17-200	26 kg	£390.00	£282.00	40 m²
500m	PEX17-500	65 kg	£935.00	£675.00	100 m²
1000m	PEX17-1000	130 kg	£1,760.00	£1,270.00	200 m²
10000m	PEX17-10000	1300 kg	£16,500.00	£11,900.00	2000 m²

Pipe Selection Guide

16mm vs 17mm — Which to Choose?

16mm: Standard for UK residential. Lower pressure drop, easier to handle, fits standard 50mm manifold centres.
17mm: Higher flow capacity. Preferred for longer circuits (>100m), commercial projects, or when using wider spacing (250–300mm).

Read Full Pipe Sizing Guide →

Maximum Circuit Lengths

16mm @ 10°C ΔT, 200mm centres: 100m max
16mm @ 10°C ΔT, 150mm centres: 80m max
17mm @ 10°C ΔT, 200mm centres: 120m max
17mm @ 10°C ΔT, 250mm centres: 100m max

Always verify with heat loss calculation and manifold flow meter settings.

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