Comparison : Item # SS-2-HN-2RT, Hex Nipple BSP/ISO Tapered
Item # SS-4-HN-4RT, Hex Nipple BSP/ISO Tapered
Item # SS-6-HN-6RT, Hex Nipple BSP/ISO Tapered
Item # SS-8-HN-8RT, Hex Nipple BSP/ISO Tapered
Item # SS-12-HN-12RT, Hex Nipple BSP/ISO Tapered