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Ships within 48 hours · Estimated delivery Sep 29 - Oct 4
Hole Diameter: 27mm
With 4 Thread Hole: M3
Package Content: 90pcs x Furniture Feet Glide Nail
Holding Force : 1050N
200(+/-2%) x Hollow Copper Rivet
79mm x 110mm Speaker Port Tube Subwoofer Bass Reflex Tube Bass Woofer Box 2pcs Curtain Grommets Hole Diameter: 27mmFeatures: Speaker Port Tube is used to improve the bass response of many types of speakers. There are plenty of types to help you with your vented box design, and carries tubes of every shape and size, including adjustable length ports and flared ports. These port tubes are a reliable, convenient installation, while at the same time providing a finished, "pro" look to your bass reflex speaker building project. Normal tubes suffer from nasty turbulence
