120mm to 75mm computer fan duct shroud adaptor. Designed to allow connection to 75mm flexible ducting. Will fit all conventional 120mm fans.
120mm to 60mm Fan Duct Adaptor Shroud for Flexible Ducting Pipe
Air Duct Adapter 100mm to 75mm Accessory for Home Office Lightweight Durable
upHere 8 Pcs Fan Buckle, 120mm CPU Cooler Fan Mounting Clip, Stainless Steel CPU Wire Buckle for 120mm Fans, Two Sizes Fixed Buckle Easy to Install Elastic Wire Buckle Bracket, Silver
darkFlash INF34 120MM PC Case Fan, Daisy-Chain, up to 2000RPM Cooling, 4-Pin PWM, ARGB CPU Cooling Computer Fan, 3 Pack (Black, Forward)
