Equipment › RETORT RING WITH FIXED ANGLE BOSSHEAD 90MM DIA. Image 1 of 1 RETORT RING WITH FIXED ANGLE BOSSHEAD 90MM DIA. $57.95 Code: META1612-90 Add To Cart Added! Code: META1612-90 Zinc plated steel. Australian made product. You Might Also Like Quick View RETORT RING WITH FIXED ANGLE BOSSHEAD 40MM DIA. $45.25 Quick View RETORT RING WITH FIXED ANGLE BOSSHEAD 100MM DIA. $60.65 Quick View RETORT RING WITH FIXED ANGLE BOSSHEAD 80MM DIA. $56.00 Quick View RETORT RING WITH FIXED ANGLE BOSSHEAD 50MM DIA. $47.60 Quick View RETORT RING WITH FIXED ANGLE BOSSHEAD 140MM DIA. $63.30