Check the listing for details. Vintage Rexall Defender R341 Combination Water Bottle & Syringe, Douche, Enema. Condition: Used. Listed at 59.95 USD. The Vintage Rexall Defender R341 Combination Water Bottle & Syringe is a unique and collectible item from the world of science and medicine. This multi-functional device serves as both a water bottle and syringe, making it a convenient and practical tool for various purposes. The combination of a water bottle and syringe in one compact design adds to its historical and functional value, making it a sought-after item for collectors and enthusiasts of vintage medical equipment.