Check the listing for details. 4 PK Parker Labs Ultrasound Blue Gel Aquasonic 100 - 5 Liter - Free Shipping. Condition: New. Listed at 119.95 USD. Ultrasound Gel Aquasonic® 100 Sonicpac® Transmission 5 Liter Cubitainer- Case of 4FeaturesColor BlueAcoustically correct for the broad range of frequencies usedCompletely aqueous, will not stain clothing or damage transducersUnique "can't be copied" formula is hypoallergenic, bacteriostatic, non-sensitizing and non-irritatingWater SolubleColor BlueNo formaldehydeNot a spermicide5 liter SONICPAC® with refillable dispenser, 1 per box, 4 per case Shipping & Delivery medical4home ships merchandise to locations within the continental United States, not including Alaska, Hawaii, Puerto Rico, Guam, or the US Virgin Islands. We DO NOT ship internationally. We do not ship to Post Office Boxes (PO Boxes). Bid with confidence! We pride ourselves on excellent customer service and expedited shipping. FREE SHIPPING! FAST SHIPPING!