The KH Model 3955 programmable, dual channel, low-pass filter is the first dual low-pass programmable filter of its kind, covering the wide cutoff frequency range from 170Hz to 25.6MHz with 2 digits of resolution. The 3955 is a 4-pole, maximally flat (Butterworth) filter, with an attenuation slope of 24dB/octave and a stopband attenuation of >100dB referred to 1Vrms input. (read more)

ULTRA-WEB® Cartridge Filter Clean the Air Better, Last Longer - Patented merv 13 rated Ultra-Web Filters lower emissions and last up to 2X longer (read more)

The KH Model 3945 programmable filter provides one Butterworth channel of low-pass, tunable over the range from 170Hz to 25.6MHz; and two independent Butterworth or Bessel channels of low-pass, high-pass or bypass, one channel of band-pass or band-reject, tunable over the range from 3Hz to 2MHz. (read more)

The KH Model 3988 provides a tunable frequency range from 0.03Hz to 1MHz in the low-pass mode and 0.03Hz to 300kHz in the high-pass mode. Both low end frequency cutoff is 0.003Hz with the 002 option. Each channel of the 3988 is an 8-pole, wide range, low-pass/high-pass filter or an amplifier providing gains to 70dB in 0.1dB steps. (read more)

The Krohn-Hite 3360 Series provides a tunable frequency range from 0.1Hz to 200kHz, and with the 002 option, the range is extended to 0.005Hz. Each channel of the 3360 Series is a selectable low-pass or high-pass, 4-pole filter providing an input gain to 50dB, and an output gain to 20dB selectable in 0.1dB steps. (read more)

UHP Series Ultra High Purity pre-packaged systems by Res-Kem Corp. provide a continuous supply of ultra pure water a minimum resistivity of 18 megohm-cm. (read more)

AERO Cell filters have been engineered to provide medium to high efficiency filtration combined with prolonged life cycles. By nature of its completely rigid design, the AERO Cell eliminates the need for retainers and special external wire media supports.

UL Class 1 and 2. Average efficiency range 50-95% (read more)

The Ultra Mag® Flowmeter from McCrometer combines superior flow measurement accuracy in liquids, slurries and sludge with low maintenance and long-life to set a new standard for performance, ease-of-use and value. The Ultra Mag features a rugged NSF-approved epoxy liner that also provides outstanding electrical insulating properties. (read more)

The KH Model 3900 has two independent filter channels with a tunable cutoff frequency range from 1Hz to 99kHz and 115dB/octave rolloff. Each channel has a stopband attenuation of >80dB and a passband ripple of typically 0.22dB. Provided are selectable single-ended or differential input with input gains up to 40dB in 10dB steps and output gains to 20dB. (read more)

Municipal water facilities and industrial process plants with wastewater treatment operations will find the Ultra Mag® Wastewater Flow Meter from McCrometer provides superior measurement accuracy in effluent applications. It operates in treated water or even sludge or slurries, requires minimal maintenance and offers a long-life of trouble-free service at a low life-cycle cost. (read more)