Check the listing for details. TETRATEC EX 800 PLUS EXTERNAL FILTER REPLACEMENT IMPELLER. TH31834. Condition: New, Made in Germany. Listed at 23.63 USD. TETRATEC EX 800 PLUS REPLACEMENT IMPELLER. GENUINE Tetra PART. REPLACEMENT IMPELLER TO FIT TETRATEC EXTERNAL 800 PLUS FILTER. INCLUDES SHAFT AND BUSHES. Postage and Dispatch times - We aim to dispatch all items, purchased and cleared payment received by 1.00pm, on day of purchase - ensuring lightning fast delivery. Please bear in mind it is dispatch time and not delivery time you are marking us on. We do our best to offer you a 5 star service if you feel for any reason you have not received this, then please contact us prior to leaving feedback so we can resolve the matter. BUY WITH CONFIDENCE - CHECK MY FEEDBACK, Check out my other items! Be sure to add me to your favourites list! MUCH MORE IN MY EBAY SHOP.