Diaphragm Coupling
$5.17
Material: Aluminum.
Diaphragm: 304 steel.
It includes: 1 pcs coupler.
List of Custom Inner Holes.
Size | Mix Inner Hole | Max Inner Hole |
D20L30 | 4mm | 8mm |
D26L35 | 5mm | 10mm |
D34L45 | 8mm | 15mm |
D39L49 | 8mm | 19mm |
D44L50 | 8mm | 20mm |
D50L57 | 12mm | 26mm |
D56L63 | 12mm | 30mm |
D68L74 | 12mm | 35mm |
D82L98 | 19mm | 40mm |
D94L98 | 20mm | 49mm |
Unlock Greater Savings
Spend more, save more! Use the codes below at checkout.
$200+ | 5% OFF | Code: 5OFF
$500+ | 10% OFF | Code: 10OFF
$1,000+ | 15% OFF | Code: 15OFF
$2,000+ | 20% OFF | Code: 20OFF
$3,000+ | 25% OFF | Code: 25OFF
$5,000+ | 30% OFF | Code: 30OFF
🚚Delivery Date
Door-to-door Air Shipping: Delivery in as little as 5 workdays (up to 15 workdays, location-dependent).
Door-to-door Sea Shipping: Most economical; delivery in 15–35 workdays; location-dependent.
📦DDP VS DAP Shipping
DDP (Duty Paid): door-to-door delivery; Carriers handle customs and fees—customers pay nothing extra at delivery.
DAP (Duty Unpaid): door-to-door delivery; Customers pay customs fees.
🛡️ Shipping to the U.S.?
We include all duties and taxes upfront (DDP)—no hidden fees or surprises.
🌍 Shipping to other countries?
Let us know if you’d like DDP shipping —please write "DDP" in the remark at checkout.
⚡ Need a Faster or Cheaper Shipping Option?
We’ll help you find the best solution. Just reach out!
❓ Have More Questions?
Visit our Shipping & Delivery FAQ for helpful information.
🚀 DDP Air Delivery to the USA
Weight | Shipping Cost | Delivery Time |
0kg - 2.5kg | $39 | 8~14 Workdays |
2.5kg - 5kg | $69 | 8~14 Workdays |
5kg - 10kg | $109 | 8~14 Workdays |
10kg - 15kg | $169 | 8~14 Workdays |
15kg - 20kg | $229 | 8~14 Workdays |
20kg - 25kg | $239 | 8~15 Workdays |
25kg - 30kg | $269 | 8~15 Workdays |
30kg - 40kg | $369 | 8~15 Workdays |
40kg - 50kg | $459 | 10~15 Workdays |
50kg - 60kg | $549 | 10~15 Workdays |
For other destinations in North America and Europe, the shipping cost and delivery times are similar to those for the USA.
🛳️DDP Sea Delivery to the USA
Weight | Shipping Cost | Delivery Time |
10kg - 22kg | $99 | 15~25 Workdays |
22kg - 30kg | $139 | 15~25 Workdays |
30kg - 40kg | $179 | 20~30 Workdays |
40kg - 50kg | $219 | 20~30 Workdays |
50kg - 65kg | $289 | 20~30 Workdays |
65kg - 80kg | $349 | 20~30 Workdays |
80kg - 100kg | $379 | 20~30 Workdays |