Specification:

Notice:

"35x80mm" means "Opening Hole Diameter: about 35mm, Length: about 80mm"

We suggest opening speaker vent hole after receiving speaker port tube!

Due to manual measurement,please allow 0.5-3mm deviation

Material: ABS

Color: Black

Error: ±3mm(0.12")

Please see the detail dimension drawing

3 Inch Loudspeaker Box Inverting Tube: 20x50mm, 21x40mm, 26x50mm, 26x80mm, 26x95mm

4 Inch Loudspeaker Box Inverting Tube: 35x67mm, 35x80mm, 37x77mm

4.5 Inch Loudspeaker Box Inverting Tube: 40x75mm, 40x116mm

5 Inch Loudspeaker Box Inverting Tube: 45x117mm, 49x116mm

6 Inch Loudspeaker Box Inverting Tube: 50x142mm, 53x100mm

6.5 Inch Loudspeaker Box Inverting Tube: 56x110mm, 60x110mm,

8 Inch Loudspeaker Box Inverting Tube: 60x150mm

10 Inch Loudspeaker Box Inverting Tube: 77x120mm

Port Tube Dimension
Model	Opening Hole Diameter (mm/inch)	Length (mm/inch)	Flange Outside Diameter (mm/inch)	Tail Outside Diameter (mm/inch)	Error (mm/inch)
20x50mm	20mm(0.79")	50mm(1.97")	28mm(1.10")	18mm(0.71")	±3mm(0.12")
21x40mm	21mm(0.83")	40mm(1.57")	26mm(1.02")	20mm(0.79")	±3mm(0.12")
26x50mm	26mm(1.02")	50mm(1.97")	32mm(1.26")	24mm(0.94")	±3mm(0.12")
26x80mm	26mm(1.02")	80mm(3.15")	32mm(1.26")	23mm(0.91")	±3mm(0.12")
26x95mm	26mm(1.02")	95mm(3.74")	30mm(1.18")	25mm(0.98")	±3mm(0.12")
35x67mm	35mm(1.38")	67mm(2.64")	45mm(1.77")	33mm(1.30")	±3mm(0.12")
35x80mm	35mm(1.38")	80mm(3.15")	40mm(1.57")	27mm(1.06")	±3mm(0.12")
37x77mm	37mm(1.46")	77mm(3.03")	43mm(1.69")	34mm(1.34")	±3mm(0.12")
40x75mm	40mm(1.57")	75mm(2.95")	53mm(2.09")	35mm(1.38")	±3mm(0.12")
40x116mm	40mm(1.57")	116mm(4.57")	50mm(1.97")	38mm(1.50")	±3mm(0.12")
45x117mm	45mm(1.77")	117mm(4.61")	59mm(2.32")	36mm(1.42")	±3mm(0.12")
49x116mm	49mm(1.93")	116mm(4.57")	63mm(2.48")	40mm(1.57")	±3mm(0.12")
50x142mm	50mm(1.97")	142mm(5.59")	63mm(2.48")	45mm(1.77")	±3mm(0.12")
53x100mm	53mm(2.09")	100mm(3.94")	60mm(2.36")	50mm(1.97")	±3mm(0.12")
56x110mm	56mm(2.20")	110mm(4.33")	68mm(2.68")	52mm(2.05")	±3mm(0.12")
60x110mm	60mm(2.36")	110mm(4.33")	72mm(2.83")	55mm(2.17")	±3mm(0.12")
60x150mm	60mm(2.36")	150mm(5.91")	72mm(2.83")	55mm(2.17")	±3mm(0.12")
77x152mm	77mm(3.03")	152mm(5.98")	88mm(3.46")	71mm(2.80")	±3mm(0.12")

Package Included:

Port Tube x 1

• All items will be shipped to worldwide.
• All items will only be shipped to the ebay address, so please make sure to provide us with the correct, precise, detailed shipping address at ebay. 
• Customs duty is obligation and liability of a citizen in your country, so the buyer should be responsible for any tax and custom duty incurred.
• Most of the items will be shipped by China Post / Hongkong Post / Singapore Post.
• The shipping time as the follow table is just for your reference. (Note: Brazil/Russia/Ukraine/Mexico/Argentina/Colombia/Chile will take much
  longer time than other countries, so the refund time will be up to 55 days.)

• We only accept payment via PayPal.
• Payment must be completed within 7 days.        
• Please leave messages for your special requests (e.g Color or Size.) in the paypal notes section when you place the order. 

• All the items will be tested before shipping. Buy them with the confidence!
• If the item is defected when you receive it or you are not satisfied with it, you can email us for a replacement or refund, but you have to return the item to us within 7 days.Please contract us and double check the return address before you return it.
• No accepting to return the electronic components.
• Full refund when receiving the original item. Notice: Return shipping fee is paid by the buyer.       
• We maintain the excellent service standards and strive for 100% customer satisfaction! Positive feedback is very important to us,so if you have any problem, please do feel free to contact us before leaving us any Neutral or Negative feedback, so that we can satisfactorily address your concerns.

• We strive to provide you with the best service, and we will reply your question within 24 hours. 
• Our greatest goal is to meet the maximum demands of the customers. 
• Business time: 9:30~21:30 (GMT+8)