XTrays reservoirs are of the highest quality and a level of durability unmatched in the industry. Made in Canada at their cutting edge thermo forming facility, XTrays reservoirs are manufactured with high impact ABS instead of the more common HIPS (styrene) and can easily with stand temperature fluctuations and the hazards of daily agricultural use. The versatile XTrays reservoirs include water level markers on the inside walls to facilitate the measuring and addition of nutrient solutions.