1/2″= OD20MM= DN15,       3/4″= OD25MM=DN20,      1″= OD32MM= DN25
1-1/2″= OD40MM= DN32,      2″= OD63MM= DN50,      2-1/2″=OD75MM= DN65
3″ =OD90MM= DN80,      4″ =OD110MM= DN100,      5″= OD140MM= DN125
6″= OD160MM= DN150,      8″= OD200MM= DN200.

pvc repairing coupling price:

SIZE	UNIT PRICE	PCS/CTNS
Φ63	$5.037	9
Φ75	$5.843	9
Φ90	$8.462	9
Φ110	$9.067	6
Φ125	$17.126	4
Φ160	$18.537	4
Φ200	$25.186	2
Φ250	$42.312	1
Φ315	$60.446	1
Φ355	$114.847	1
Φ400	$116.861	1

pe repairing coupling price:

SIZE	UNIT PRICE	PCS/CTNS
Φ50	$3.285	24
Φ63	$4.281	9
Φ75	$4.579	9
Φ90	$6.571	9
Φ110	$7.367	6
Φ125	$13.539	4
Φ160	$15.132	4
Φ200	$20.309	2
Φ250	$25.884	1
Φ315	$40.817	1

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