Comparison : Item # 0026-6979, Lens Mount Adapter for 1.5" Dia. Lens Mount for Trumpf L3030/L4030 with 5" FL
Item # 0026-6980, Lens Mount Adapter for 1.5" Dia. Lens Mount for Trumpf L3030/L4030 with 7.5" FL
Item # 0026-7110, Lens Mount Adapter for 1.5" Dia. Lens Mount for Trumpf New Style Cutting Head with 5" FL
Item # 0026-7111, Lens Mount Adapter for 1.5" Dia. Lens Mount for Trumpf L2503 & L2530 with 5" FL
Item # 0026-7005, Lens Mount Adapter for 1.5" Dia. Lens Mount for Trumpf L2503 & L2530 with 7.5" FL