Watts Radiant Slab PERT Tubing

The next generation of slab heating tubing.

RadiantPERT is 5-layer tubing used for radiant heating, cooling, snow melting, and distribution piping. RadiantPERT offers high strength, high temperature resistance, and long life without cross-linking. It is the strongest flexible pipe on the market today when compared to alternative materials. RadiantPERT offers the greatest range of fitting flexibility as it can be used with ASTM F1960 Cold Expansion, CinchClamps, CrimpRings, and Compression fittings. RadiantPERT is manufactured with a DIN Standard barrier that makes it easier to pull through joists, reduces expansion noise, protects the oxygen barrier against moisture and job-site abuse. It is certified to ASTM F2623 for PE-RT SDR Tubing and carries a 30-year warranty for residential and commercial heating and snow melting applications.

  • Certified to ASTM F2623 for Polyethylene of Raised Temperature (PE-RT) SDR 9 Tubing by NSF and CSA

  • Strong, highly-engineered 5-layer PE-RT (polyethylene raised temperature) tubing with oxygen barrier

  • Can be used with ASTM F1960 Cold Expansion, CinchClamps, CrimpRings, and Compression fittings

  • For radiant heating, cooling, snow melting, and distribution piping

  • 30 Year Replacement Warranty. Watts will pay to replace the slab if the tubing fails.

Watts Radiant PERT Selection Table

Nominal IDODAvg. IDBend RadiusVolume gal/100 ft.Material
3/8 in..500 in..350 in.2.5 in..53 gal.Radiant PERT
1/2 in..625 in..475 in.3.125 in..96 gal.Radiant PERT
5/8 in..750 in..574 in.3.75 in.1.39 gal.Radiant PERT
3/4 in..875 in..671 in.4.375 in.1.89 gal.Radiant PERT
1 in.1.125 in..863 in.5.625 in.3.12 gal.Radiant PERT

3/8 in. Watts Slab PERT

Small, cheap and flexible. Carries a lot of heat for it's size.

1/2 in. Watts Slab PERT

The backbone of the industry. Perfect balance of price, length and flexibility.

5/8 in. Watts Slab PERT

For when you need a little more length, heat or flow.

3/4 in. Watts Slab PERT

For large areas. Light commercial slabs benefit from the extra length and heat

1 in. Watts Slab PERT

For large areas. Light commercial slabs benefit from the extra length and heat

PT032161-300
731.27 731.27 731.27 USD
1 in.Watts Radiant RadiantPERT x 300 ft. Coil
PT032121-500
728.84 728.84 728.84 USD
3/4 in.Watts Radiant RadiantPERT x 500 ft. Coil
PT032121-300
436.82 436.82 436.82 USD
3/4 in.Watts Radiant RadiantPERT x 300 ft. Coil
PT032121-1200
1,747.25 1,747.25 1747.25 USD
3/4 in.Watts Radiant RadiantPERT x 1200 ft. Coil
PT032121-1000
1,455.84 1,455.84 1455.84 USD
Watts Radiant 3/4 in. RadiantPERT x 1000 ft. Coil
PT032121-100
146.32 146.32 146.32 USD
Watts Radiant 3/4 in. RadiantPERT x 100 ft. Coil
PT032101-500
587.70 587.70 587.7 USD
5/8 in.Watts Radiant RadiantPERT x 500 ft. Coil
PT032101-1200
1,410.83 1,410.83 1410.83 USD
5/8 in.Watts Radiant RadiantPERT x 1200 ft. Coil
PT032081-2
0.00 0.0 USD
1/2 in.Watts Radiant RadiantPERT x 2 ft. Sample
PT032061-600
431.95 431.95 431.95 USD
3/8 in.Watts Radiant RadiantPERT x 600 ft. Coil
PT032061-2
0.00 0.0 USD
3/8 in.Watts Radiant RadiantPERT 2 ft. Sample
PT-032081-300
271.03 271.03 271.03000000000003 USD
1/2 in.Watts Radiant RadiantPERT x 300 ft. Coil
PT-032081-1000
904.66 904.66 904.66 USD
1/2 in.Watts Radiant RadiantPERT x 1000 ft. Coil