| E721 Raccordo di riduzione maschio - femmina con guarnizione Filettatura GAS cilindrica | |
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| serie | codice | F | F2 | S1 | D1 | L1 | L2 | L3 | pressione |
| E721-110/104 | G3/8 | G1/8 | 22 | 22 | 22.5 | 12 | 9 | PN 400 | |
| E721-113/104 | G1/2 | G1/8 | 27 | 27 | 24 | 14 | 9 | PN 400 | |
| E721-113/106 | G1/2 | G1/4 | 27 | 27 | 24 | 14 | 13 | PN 400 | |
| E721-132/119 | G1 1/4 | G3/4 | 50 | 50 | 32 | 20 | 18 | PN 315 | |
| E721-132/125 | G1 1/4 | G1/2 | 50 | 50 | 32 | 20 | 16 | PN 315 | |
| E721-125/113 | G1 | G1/2 | 41 | 40 | 29 | 18 | 16 | PN 315 | |
| E721-125/110 | G1 | G3/8 | 41 | 40 | 29 | 18 | 14 | PN 315 | |
| E721-125/106 | G1 | G1/4 | 41 | 40 | 29 | 18 | 14 | PN 315 | |
| E721-119/110 | G3/4 | G3/8 | 32 | 32 | 26 | 16 | 14 | PN 315 | |
| E721-119/106 | G3/4 | G1/4 | 32 | 32 | 26 | 16 | 13 | PN 315 | |
| E721-138/113 | G1 1/2 | G1/2 | 55 | 55 | 36 | 22 | 16 | PN 250 | |
| E721-138/119 | G1 1/2 | G3/4 | 55 | 55 | 36 | 22 | 18 | PN 250 | |
| E721-138/125 | G1 1/2 | G1 | 55 | 55 | 36 | 22 | 20 | PN 250 |