4" HDPE DR21 Mortar Tube – 24.125"

The 4" HDPE DR21 Mortar Tube is a heavy-duty professional mortar designed for commercial display fireworks. Constructed from durable high-density polyethylene (HDPE), this plugged mortar is built for compatible 4-inch commercial display canister and ball shells.

Product Specifications

• Product Type: Plugged commercial display fireworks mortar tube
• Inside Diameter: 4"
• Outside Diameter: 4.5"
• Inside Length: Approximately 20.875"
• Outside Length: Approximately 24.125"
• Material: High-Density Polyethylene (HDPE)
• DR Rating: DR21
• Bottom Plug: Two 1.5" Southern pine plugs
• Total Plug Thickness: 3"
• Plug Fastening: Eight heavy-duty exterior screws
• Color: Black
• Use: Commercial display fireworks
• Compatibility: Compatible 4" commercial canister and ball shells
• Shells Included: No

Heavy-Duty HDPE DR21 Construction

Built from HDPE with a DR21 rating, this mortar provides the durable construction required for professional display applications. HDPE is commonly used for display mortars because it is designed to flex, tear, or deform under extreme pressure rather than create the brittle fragmentation associated with unsuitable materials such as PVC.

Designed for 4-Inch Commercial Display Shells

The 4-inch inside diameter is designed for properly sized professional display shells. With an approximately 20.875-inch inside length and 24.125-inch overall length, the tube provides the size and depth required for compatible 4" commercial canister and ball shells.

Reinforced Double-Plug Base

The base features two 1.5-inch Southern pine plugs, providing approximately 3 inches of total plug thickness. The plugs are secured with eight heavy-duty exterior screws for a strong, reinforced base assembly.

Professional Display Equipment

This 4" DR21 mortar is intended for commercial display fireworks applications and is suited for trained professional operators who need replacement mortars or components for appropriately designed display setups.

Important Safety Information

For commercial display fireworks use only. Use only correctly sized shells intended for a 4" mortar. The mortar must be properly secured and inspected before use, and all fireworks must be handled and discharged in accordance with applicable licensing, permitting, manufacturer, and professional display safety requirements.