LTWFITTING Brass BSP Fitting Coupler / Adapter 3/8-Inch Female BSPP x 1/2-Inch(12mm) Hose Barb Fuel Gas Water (Pack of 400) Pack include: 6 x Carbon

Pack include: 6 x Carbon filter

also fits for 300l/h Aquarium Internal Filter

Pack include: Microfiber Mop Pad x 12

Alternative to part number: 1713248500

Pack include: 6 x Green Coarse Foam

LTWFITTING Brass BSP Fitting Coupler / Adapter 3/8-Inch Female BSPP x 1/2-Inch(12mm) Hose Barb Fuel Gas Water (Pack of 400) Pack include: 6 x CarbonPackage Include: 400pcs. Materies: brass. Type: FeMale X hose Barb. Tubing ID: 1 2 Inch(12mm), Thread: 3 8 Inch BSPP Parallel Female. Pay attention to the column of size and color, you could find a variety of product types and quantities for your choice. The more your purchase the best price you get.