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Brentwood D15 Nesting Cellular Drift Eliminator

D15 Nesting Drift Eliminator is designed for crossflow applications requiring very low drift levels with minimal airside pressure drop, meaning lower fan horsepower requirements. The nesting D15 model provides seamless drift removal by eliminating gaps between adjacent packs, while also allowing for varied pack stiffness and span capability options.

  • Available in 2 models based on pack stiffness and in various lengths up to 10 feet.
  • UV inhibitors added for sunlight protection.
  • Nesting provides seamless drift removal by eliminating gaps between packs that can allow drift droplet bypass.
  • Drift loss of 0.003% circulating water flow (Test Method CTI-HBIK Standard 140).
  • Material meets CTI Standard 136.
D15 Nesting

Product Dimensions

Pack Sizes
Depth (D), Width (W), Length (L)
Minimum Maximum
D: 5.25 in
(133 mm)
D: 5.25 in
(133 mm)
W: 24 in
(610 mm)
W: 24 in
(610 mm)
L: 12 in
(305 mm)
L: 96 in
(2438 mm)

Product Weights and Span Capabilities

Model No. 30 mil Flat Stiffener Sheets in a 24-in-wide pack Gauge Weight Maximum Span
mils mm lb/ft2 kg/m2 Counterflow Crossflow
F6 6 15 0.38 1.7 8.3 24 in
(610 mm)
72 in
(1830 mm)
F8 8 15 0.38 1.8 8.8 36 in
(915 mm)
96 in
(2440 mm)


Brentwood’s D15 drift eliminators have been tested per ASTM E84 Standard Test Method for Surface Burning Characteristics of Building Materials and received a Flame Spread Index of 15.


When installed in a crossflow cooling tower, the panels are to be positioned as shown with the paint strip low and facing the airflow. In this position all of the flutes slope downward to allow for proper drainage into the wet section of the cooling tower. The recommended angle is 10 degrees from vertical, however, shallower angles or fully vertical installations can be used in certain instances. Contact Brentwood’s application specialists for specific guidelines.

Brentwood D15 Nesting Specs
Brentwood Cellular Drift Eliminators Brochure

Product description

Brentwood’s D15 Nesting high-efficiency drift eliminators are specially designed and constructed to meet today’s demanding drift reduction requirements for crossflow cooling towers. The D15 Nesting Cellular Drift Eliminator combines high drift elimination with low pressure drop, yielding an extremely efficient drift eliminator panel. Constructed of 15-mil (after forming) PVC corrugated sheets and heavy, 30-mil stiffener sheets, the panels are designed to interlock to form a leak-tight integrated installed assembly. The packs are solvent-bonded to provide stiff, rugged, 24-inch-wide panels in lengths up to 10 feet.

Additional information