Welded Tube Overwraps

Custom Fabricated Tubes

Square Mesh

Oriented Netting

Diamond Mesh

Sleeves & Wraps

Rigid Polypropylene Tubes
Plastic netting in rigid tube form is used for center core support in filter cartridges. Rigid mesh tubes are also be used as an outer containment sleeve to protect filter media from damage during handling and cleaning. Extruded cores are common in all types of cartridge filtration elements. The ready availability of a wide range of configurations, and the minimal tooling costs associated with custom designs, make extruded cores a favorite for filter design engineers.

Rigid Mesh Tubes are created by flowing molten resin through die slots to create machine direction (MD) strands. Transverse direction (TD) stands connect to the machine direction strands, to form the hoop configuration. The molten tube slides over a sizing mandrel to form the desired inside diameter and create a relatively smooth inner surface.

Measurements & Tolerances
Tube diameters can vary slightly from lot-to-lot due to shrinkage variability. Inside Diameter (ID) and Outside Diameter (OD) tolerances are typically +/-0.020" for most configurations.

Rigid mesh tubes are available as extruded ("rough cut") with nominal length and square tolerance of +/-.25". To create custom lengths with more precise dimensions extruded tubes are cut on rotating spindles. Nominal "finished cut" tolerance is +/-0.030" for lengths less than 46 inches or +/-0.060" for lengths from 46 to 94 inches.

Spindles are typically sized 0.010" smaller than the minimum inside diameter of the extruded tube. Cutting blades can compress the tube causing the ends to be slightly out of square. Tolerances vary dependent on wall thickness and strand squareness.

Tolerance capabilities are impacted by tube diameter, wall thickness, strand configuration and cut length. Please consult your Industrial Netting representative for specific tolerances achievable on your tube.

Custom Sizes
We also custom fabricate tubes to larger diameters from a variety of flat mesh or nonwoven products or bond nonwovens to the outer surface of rigid tubes using our welding capabilities. Visit our YouTube page to view a short video illustrating alternatives available in both rigid mesh tubes and custom formed tubes.

Choose from a broad selection of rigid mesh tubes extruded from polypropylene or polyethylene. Most products below are available from inventory. Those denoted with a red star may require minimum quantity or lead time for production. If you do not see what you need, please contact us to further explore our custom capabilities.

Rigid Mesh Tubes  <1-1/4 inch Inside Diameter Product (Not Actual Size) Product Number ID (inches) OD (inches) Wall Thickness (inches) MD Strands Cross Strands (per inch) Hole Size MD-MD  CD-CD Open % Area View Image   RN 9998 0.480 0.650 0.085 12 3.5 0.100 0.070 17% View Image RN 9999    0.312 0.485 0.086 8 6.00 0.085 0.075 20% View Image RN 1000    0.640 0.845 0.103 12 4.50 0.115 0.115 37% View Image RN 0900    0.660 0.810 0.075 12 13.00 0.080 0.050 20% View Image RN 1885    0.670 0.965 0.147 15 3.95 0.050 0.110 17% View Image RN 1880    0.750 0.960 0.105 15 4.00 0.100 0.130 26% View Image RN 0910    0.870 1.110 0.120 15 8.5 0.090 0.050 14% View Image RN 3370    0.930 1.055 0.063 12 4.50 0.190 0.170 48% View Image   RN 3912 0.935 1.135 0.100 12 10.00 0.175 0.055 N/A View Image   RN 3910 0.940 1.125 0.093 15 4.00 0.120 0.110 22% View Image RN 3911    0.940 1.125 0.092 15 4.00 0.125 0.125 29% View Image RN 2161    1.015 1.190 0.088 15 5.00 0.165 0.155 49% View Image RN 2000    1.080 1.305 0.113 15 4.50 0.170 0.120 33% View Image RN 2020    1.080 1.330 0.125 15 3.50 0.175 0.140 30% View Image RN 8691    1.080 1.320 0.120 15 4.50 0.155 0.090 22% View Image RN 3293    1.140 1.390 0.125 20 7.12 0.105 0.600 21% View Image   RN 2390 1.150 1.330 0.090 15 4.00 0.200 0.185 51% View Image   RN 3291 1.155 1.385 0.115 20 9.50 0.080 0.040 14% View Image RN 2370    1.200 1.380 0.090 15 5.00 0.175 0.120 35%

Rigid Mesh Tubes  1-1/4 to 2 inch Inside Diameter Product (Not Actual Size) Product Number ID (inches) OD (inches) Wall Thickness (inches) MD Strands Cross Strands (per inch) Hole Size MD-MD  CD-CD Open % Area View Image   RN 2632 1.265 1.480 0.108 20 10.50 0.085 0.040 15% View Image RN 2630    1.270 1.480 0.105 20 10.50 0.085 0.040 15% View Image RN 2540    1.275 1.460 0.093 17 4.00 0.175 0.160 40% View Image   RN 1481 1.385 1.650 0.133 15 3.00 0.200 0.160 29% View Image RN 1500    1.495 1.615 0.060 20 7.00 0.165 0.110 46% View Image RN 3850    1.500 1.730 0.115 24 9.00 0.100 0.040 15% View Image RN 4810    1.500 1.690 0.095 15 2.80 0.245 0.215 39% View Image RN 3690    1.580 1.690 0.055 20 7.00 0.175 0.100 43% View Image RN 3851    1.640 1.840 0.100 24 10.00 0.130 0.045 23% View Image RN 4460    1.700 1.930 0.115 24 2.60 0.160 0.205 32% View Image RN 2620    1.750 1.850 0.050 24 4.00 0.150 0.140 32% View Image RN 2530    1.825 2.020 0.098 25 4.00 0.175 0.160 41% View Image   RN 2135 1.890 2.135 0.123 32 7.50 0.084 0.040 13% View Image   RN 2535 1.900 2.045 0.073 32 4.00 0.110 0.140 27%

Rigid Mesh Tubes  2 to 3 inch Inside Diameter Product (Not Actual Size) Product Number ID (inches) OD (inches) Wall Thickness (inches) MD Strands Cross Strands (per inch) Hole Size MD-MD  CD-CD Open % Area View Image RN 4430    2.150 2.340 0.095 24 4.00 0.220 0.130 35% View Image RN 2221    2.165 2.385 0.110 32 11.50 0.095 0.035 15% View Image   RN 2222 2.225 2.430 0.103 32 11.50 0.118 0.025 13% View Image   RN 4465 2.270 2.440 0.085 24 3.00 0.215 0.215 46% View Image RN 5080    2.275 2.440 0.083 32 4.50 0.155 0.125 34% View Image RN 2325    2.310 2.620 0.155 20 2.40 0.280 0.235 37% View Image RN 2580    2.335 2.480 0.073 32 6.00 0.155 0.100 35%   RB 2580    2.335 2.480 0.073 32 6.00 0.155 0.100 35% View Image   RN 2259 2.375 2.600 0.113 32 4.00 0.140 0.135 N/A View Image RN 5090    2.375 2.525 0.075 16 2.00 0.440 0.420 69% View Image RN 1280    2.390 2.555 0.083 32 4.00 0.145 0.135 29% View Image   RB 2352 2.420 2.585 0.083 32 4.50 0.150 0.120 36% View Image RN 1900    2.455 2.545 0.045 32 12.00 0.145 0.056 35% View Image   RN 3540 2.475 2.625 0.075 16 3.50 0.440 0.220 60% View Image RN 7120    2.480 2.590 0.055 32 12.00 0.135 0.055 32% View Image RN 7125    2.480 2.590 0.055 32 12.00 0.140 0.055 N/A View Image   RN 2680 2.490 2.645 0.078 32 4.00 0.175 0.150 37% View Image RN 2440    2.540 2.695 0.078 32 4.00 0.180 0.160 40% View Image   RN 0530 2.595 2.795 0.100 25 3.75 0.245 0.185 45% View Image   RN 1140 2.595 2.760 0.083 32 4.00 0.170 0.150 35% View Image RN 2260    2.600 2.730 0.065 32 10.25 0.145 0.065 33% View Image RN 5640    2.690 2.890 0.100 25 4.00 0.275 0.175 49% View Image RN 2670    2.710 2.900 0.095 37 4.00 0.150 0.145 33% View Image RN 7480    2.865 3.045 0.090 35 3.75 0.200 0.200 50%

Rigid Mesh Tubes  >3 inch Inside Diameter Product (Not Actual Size) Product Number ID (inches) OD (inches) Wall Thickness (inches) MD Strands Cross Strands (per inch) Hole Size MD-MD  CD-CD Open % Area View Image   RN 2315 3.000 3.265 0.130 20 1.80 0.370 0.340 48% View Image RN 2330    3.105 3.345 0.120 20 2.00 0.400 0.300 49% View Image RN 1600    3.115 3.335 0.110 35 4.50 0.190 0.120 32% View Image   RN 2300 3.395 3.600 0.103 35 4.50 0.210 0.120 32% View Image RN 2301    3.395 3.610 0.107 35 2.25 0.210 0.300 45% View Image   RN 2320 3.415 3.620 0.102 35 12.00 0.195 0.045 31% View Image   RB 2353 3.520 3.700 0.090 65 4.00 0.095 0.140 31% View Image   RN 2305 3.570 3.885 0.158 21 1.80 0.430 0.350 49% View Image   RN 3531 3.590 3.785 0.098 65 4.00 0.070 0.150 22% View Image RN 3530    3.650 3.785 0.068 65 4.00 0.100 0.165 33% View Image   RN 1914 3.770 3.895 0.062 65 4.00 0.100 0.170 36% View Image   RN 2310 3.785 4.085 0.150 21 1.80 0.460 0.390 55% View Image RN 1913    3.840 3.965 0.063 65 4.00 0.115 0.160 35% View Image RN 1910    3.860 3.985 0.063 65 4.00 0.120 0.165 37% View Image   RB 2356 4.035 4.280 0.108 75 3.62 0.090 0.155 32% View Image RN 3720    4.080 4.225 0.073 65 4.00 0.120 0.160 34% View Image   RN 1950 4.140 4.425 0.142 21 2.65 0.500 0.250 53% View Image RN 1912    4.150 4.290 0.070 65 4.00 0.120 0.170 36% View Image   RB 2354 4.520 4.740 0.110 75 3.50 0.110 0.160 32% View Image   RN 4410 4.410 4.550 0.070 6 5.10 0.118 0.161 37% View Image   RN 4670 4.670 4.920 0.130 60 2.00 0.374 0.314 49% View Image   RN 5980 5.790 5.980 0.100 70 5.625 0.106 0.137 38% View Image   RN 6100 6.100 6.460 0.180 8 3.05 0.236 0.228 48% View Image   RN 8660 8.660 9.020 0.180 90 3.625 0.157 0.137 25%

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