| Non-return valve HB-1/4-QS-8 153455 | Check valve | Compact | Brass, Nickel-plated | | €29.46/piece |
| Non-return valve HB-1/4-QS-6 153451 | Check valve | Compact | Brass, Nickel-plated | | €26.33/piece |
| Non-return valve HB-1/2-QS-12 153461 | Check valve | Compact | Anodised aluminium | | €65.35/piece |
| Non-return valve HB-M5-QS-4 153445 | Check valve | Compact | Brass, Nickel-plated | | €21.75/piece |
| Non-return valve HB-1/8-QS-6 153449 | Check valve | Compact | Brass, Nickel-plated | | €24.64/piece |
| Non-return valve HB-3/8-QS-12 153459 | Check valve | Compact | Anodised aluminium | | €63.69/piece |
| Non-return valve HB-1/8-QS-8 153453 | Check valve | Compact | Brass, Nickel-plated | | €27.46/piece |
| Non-return valve HB-1/8-QS-4 153447 | Check valve | Compact | Brass, Nickel-plated | | €23.37/piece |
| Non-return valve HB-3/8-QS-10 153457 | Check valve | Compact | Anodised aluminium | | €61.28/piece |