I have these they work great!!

BAR5F N18S-B Dispensing Pump, Fits 1" Inch Necks, Shampoo, Conditioner, Lotion, etc. Black, Pack of 4 https://www.amazon.com/dp/B01JJBKK00/ref=cm_sw_r_cp_api_i_3BpyFb2FPB2S2