In order to support our customers with quick turnaround orders, TPS invests heavily in stocking our game changing filter pressed, water resistant TPSX-12® calcium silicate. Here are the sizes of calsil we stock at our location north of Seattle in Stanwood, Washington:

1. Copper tubing sizes (CTS)
1. 1, 1.5 and 2” wall thicknesses
2. 5/8 x 1 through 4 1/8 x 2
2. 6 1/8“ copper available fabricated into 18” lengths

1. Iron Pipe Sizes (IPS)
1. 1, 1.5 and 2” wall thicknesses
2. 1/2 x 1 up to 20 x 2 in even increments above 6” pipe
   1. 4 1/2“ pipe cover is non-stock, but can be fabricated in 18” lengths
   2. Stanwood does not stock the following odd sizes:
      1. 7, 9, 11, 15, 17 or 19” diameters
         However, our Las Vegas location does stock all even and odd increments up to 24 x 2 for multi-layering and heat traced pipes.

   3. 1” wall thickness in every stocked pipe size from 1/2 to 20” diameter!
      1. Our competitor does not offer 1” wall thickness above 6 x 1
      2. Why pay more for 1 ½” thick calsil just because the other guys don’t offer it? TPS offers 1” wall because our calsil is stronger!!
3. Due to numerous customer requests, our Stanwood location is also now stocking selected 3” wall thickness sizes in single layer:
   1. 4 x 3
   2. 6 x 3
   3. 8 x 3
   4. 10 x 3
   5. 12 x 3

As a reminder, the North American nomenclature for pipe insulation sizes is the following:

1. Pipe size x wall thickness of the insulation
2. For instance pipe insulation produced to cover a 6” pipe that is 2” thick is called
   1. 6 x 2 – Pronounced as “Six by two”

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