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 80MM DIA. $56.00 Quick View RETORT RING WITH FIXED ANGLE BOSSHEAD 70MM DIA $52.70 Quick View RETORT RING WITH FIXED ANGLE BOSSHEAD 120MM DIA. $62.50 Quick View RETORT RING WITH FIXED ANGLE BOSSHEAD 100MM DIA. $60.65 Quick View RETORT RING WITH FIXED ANGLE BOSSHEAD 160MM DIA. $70.95