Belimo CQKB24-SR-LL Belimo proportional, electronic failsafe, 24 V, for 2 to 10 VDC or 4 to 20 mA CQKB24-SR-LL
Belimo Z2050QPT-D+CQKB24-LL Belimo ZoneTightâ„¢,0.5",2 Way,1.9 GPM,w/ Electronic Fail-Safe,24V,On/Off Z2050QPT-D+CQKB24-LL
Belimo Z2075Q-K+CQKB24-LL Belimo ZoneTightâ„¢,0.75",2 Way,9.8 Cv,w/ Electronic Fail-Safe,24V,On/Off Z2075Q-K+CQKB24-LL
Belimo Z3050Q-E+CQKB24-LL Belimo ZoneTightâ„¢,0.5",3 Way,2.7 Cv,w/ Electronic Fail-Safe,24V,On/Off Z3050Q-E+CQKB24-LL