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All mortar tubes are HDPE (High Density PolyEthylene), the standard for safety in the fireworks industry. 6" HDPE Mortar Tube DR21 Mortar, 33 length. 8.4mm wall thickness.
All mortar tubes are HDPE (High Density PolyEthylene), the standard for safety in the fireworks industry. 6" HDPE Mortar Tube DR21 Mortar, 33 length