Kemmerer Bottle 2.2L TT Silicone Kit (includes case, line, messenger) These Kemmerer water samplers have no metal parts to contact your sample. Delrin fasteners and an O ring replace the stainless steel garter spring in the All-Angle™ trip head. The bottle body can be either transparent acrylic, which allows you to view your sample before removal, or opaque PVC for greater durability. The all-plastic center shaft is made of plastic CPVC with a plastic delrin nut on its bottom. Designed for trace metal sampling due to silicone seals. Also may be used for organic sampling to concentrations of mg/L. When running metal, organic, or any other chemical analyses, it is best to run a blank on the sampler prior to use. The end seals mount like a tire on a hub and are easy to replace. The end seals should not be sealed, seated, or fully closed during storage. Although made of tough elastomers, they have a tendency to take a set during long periods of inactivity and stress. For this reason, store your Kemmerer with the seals slightly open and not touching the bottle body.