Subject to availability we are currently supplying vouchers to obtain a FREE worm egg count with all purchases of Eqvalan Duo. We will send you a voucher including a unique reference code, which you will then need then to register online. You’ll then receive an email, which will let you know the date when your worm egg count kit will be sent and given further instructions on what to do once you receive it. A worm egg count can help to ensure that your horse gets the right wormer at the right time. Following the worm egg count, an independent specialist laboratory will let you know the parasite burden of your horse, detailing the worm species and numbers present. You will also be advised of the most appropriate worming plan for your horse