Aprilaire Maintenance Kit #4750

Hanna Instruments GroLine pH/EC/TDS Multiparameter Probe - Replacement Probe.These multiparameter probes provide accurate and reliable monitoring on the pH, EC, and TDS.

Ideal for whole-house cleaning, especially homes with pets or allergy-sufferers, this upright includes many convenience features, HEPA sealed filtration, plus additional tools.

It combines HEPASilent Filtration, 5 air changes per hour, and an optimal CADR to protect homes and work against airborne irritants..

Features heavy-duty clamp for tight grip on poles or framework, IP44-rated EC motor and 10 fan speeds. AC Infinity CLOUDRAY S6 10-Speed Grow Tent Clip Fan - 6-In. Auto.

Auto.Features heavy-duty clamp for tight grip on poles or framework, IP44-rated EC motor and 10 fan speeds. AC Infinity CLOUDRAY S6 10-Speed Grow Tent Clip Fan - 6-In.